The P.S. CTA

“P.S. You can now schedule videos to Bluesky in Buffer! Try it →”

A product-update email closes with a postscript pointing the reader to try a newly shipped scheduling feature.

Why it’s this techniqueThe 'P.S.' opener stages the whole line as a casual afterthought tacked on past the sign-off, which lowers the reader's guard and gives late news outsized weight. 'You can now schedule videos to Bluesky in Buffer' delivers the fresh capability, and 'Try it →' fuses that news to one action, the arrow pointing the eye toward the click. The tell is the postscript frame itself: this is not a headline or a body pitch but an appended aside doing the selling, riding the well-worn habit of reading the P.S. even when the rest gets skimmed.

“P.S. - this video (and offer) comes down in 48 hours... so you need to move FAST. Watch the video NOW >>”

A launch email's postscript pairs a 48-hour cutoff with a command to watch the offer video immediately.

Why it’s this techniqueThe mechanism fires the closing instruction from inside a postscript, pairing a deadline with a directive so the last thing read is an order. 'P.S.' frames the note as an afterthought, then 'this video (and offer) comes down in 48 hours' sets the clock and 'Watch the video NOW >>' converts that pressure into a single click. the structural tell is the 'P.S.' opener wrapping a command, the arrows '>>' pointing at the action, and the imperative verb 'Watch' landing in final position. This is not a bare deadline line because it does not stop at the countdown; it resolves 'so you need to move FAST' into a specific next step the reader is told to take right now.

“P.S. If you are serious about losing weight, you should order my report today! I don’t have too many of them left and I don’t want you to have to wait while I get more printed up.”

A weight-loss sales letter signs off, then a postscript urges the reader to order the report today before stock runs low.

Why it’s this techniqueThe postscript reactivates the ask after the sign-off, pairing a direct order push with a scarcity squeeze. 'If you are serious about losing weight, you should order my report today' turns the delay into a self-judgment, then 'I don't have too many of them left' and 'I don't want you to have to wait while I get more printed up' manufacture urgency around a supply that could run short. The tell is placement. It sits under 'Sincerely, Larry Coker' as a 'P.S.', the reader's last stop, and the whole line is engineered to convert a skimmer who scrolled past the body straight to the close. That final-position restatement of the buy command is what marks it as this move.

“P.S. Please act now. There are only a very small number of this exclusive package available, and when they're gone—they're gone. Your order form and check or credit card information must reach me within the next 10 days.”

A direct-mail postscript pushes the reader to act at once and get the order in within ten days.

Why it’s this techniqueThe letter's close reopens with the postscript label 'P.S.', which resurfaces after the sign-off to plant a final directive: 'Please act now.' Readers who skim to the bottom hit the command exactly where attention lingers. The structural tell is that the action instruction lives in the postscript itself, closing with the concrete fulfillment step, 'Your order form and check or credit card information must reach me within the next 10 days,' rather than in the body copy. Scarcity language about 'only a very small number of this exclusive package available' supplies pressure, but it serves the postscript's order command, which the excerpt is built to deliver.

“P.S. Once advance access to the Gilder Report is opened up to the public, you'll lose your opportunity to be the first in line to get the information”

An investing newsletter's postscript warns access will soon open to the public, then directs the reader to claim the book now.

Why it’s this techniqueThe postscript reactivates the reader after the pitch closes, staging a loss the reader will feel if they stall. 'Once advance access... is opened up to the public, you'll lose your opportunity to be the first in line' converts delay into forfeited standing, then routes straight to the click. The structural tell is the 'P.S.' frame itself carrying a fresh consequence rather than a summary, a bracketed final nudge that reopens the case after the sign-off. It leans on the postscript's known status as the most-read line, spending that attention on a deadline the reader controls only by acting now.

“P.S. If you use your cellphone at least once a day, you MUST watch this video. Do not ignore this warning -- this phone is killing your vision right now. WATCH HERE.”

A health email's postscript issues a warning and orders the reader to watch the video immediately.

Why it’s this techniqueThe move rides the postscript slot to relaunch the ask, opening with 'P.S.' and closing on the imperative 'WATCH HERE.' after qualifying the reader ('If you use your cellphone at least once a day') so the instruction feels personally addressed. The structural tell is the P.S. framing wrapped around a single directive verb, escalating through 'you MUST watch this video' and 'Do not ignore this warning' until the whole block collapses onto one click instruction. The reason-to-act ('this phone is killing your vision right now') exists only to load the button, not to argue; every line steers toward the terminal command, which is what makes this a postscript engineered as the action prompt itself.

“PS. My Final Thought: Maybe you've waited your entire life for a \"big break\" of one kind or another. Maybe you'd like to take a really spectacular, luxury vacation like many of my members have (instead of penny pinching). ... So, don't delay, Fax the enclosed Enrolment Form NOW to 1-800-253-1633 call us 24 hours a day, 7 days a week at 1-800-398-5111.”

A restaurant-marketing postscript builds to a final thought, then tells the reader to fax the enrolment form or call now.

Why it’s this techniqueThe postscript spends its last lines issuing an order rather than an argument: 'So, don't delay, Fax the enclosed Enrolment Form NOW.' The reader's final glance lands on a specific action with the mechanism attached, a fax number and a live line 'call us 24 hours a day, 7 days a week.' The tell is placement and stacking: response channels queued back to back so the exit from the letter is a route to buy. Urgency words like 'NOW' and 'don't delay' garnish the instruction, but the move is the explicit directive plus the numbers that let the reader obey it immediately.

“P.S - Go to the link below if you need help getting more students for your online yoga classes.”

A coaching postscript sends prospects to a results page and tells them to open the link and apply.

Why it’s this techniqueThe move loads the ask into a postscript, opening with 'P.S -' and then routing straight to action with 'Go to the link below' the instant the main message appears to have ended. The afterthought framing lowers the reader's guard, so the request reads as a helpful last word rather than a pitch. The structural tell is the literal 'P.S' marker fronting a directive verb, 'Go to the link below,' conditioned on a felt need, 'if you need help getting more students.' That postscript-plus-instruction pairing is what distinguishes this from a plain closing line or an inline button, which carry no afterthought signal and no fresh-eyes second read.

“PS - For a limited-time only, get 10% off our 4th of July Collection with code STARS10”

A retail email's postscript hands the reader a limited-time discount code for a seasonal collection.

Why it’s this techniqueThe 'PS' label reopens the message after the sign-off and drops the reader into a directive: 'get 10% off' the collection, redeemable 'with code STARS10'. The postscript slot draws disproportionate eyes, and the copy spends that attention on a single redeemable action rather than a recap. The structural tell is the shape: it opens with 'PS', then issues an imperative to act and hands over a literal code to enter, which is a call to action parked in the closing line, not a summary or a thank-you. Though 'limited-time only' adds urgency, the sentence resolves on the coded action the reader is told to take.