Make it a standing habit never to agree to a request on the spot: buy time with a stock phrase, leave the situation, and decide later when the social pressure of the moment is gone.

How to do it

1. 1Pick one sentence and make it automatic, so that it comes out before you start weighing the request: "Let me check and get back to you."
2. 2Use it for everything above trivial: favors, commitments of time or money, invitations, volunteering, purchases, signatures. A rule you apply to everyone is easier to say and harder to argue with than a judgment about this person.
3. 3Give a time if you can ("I will let you know by Thursday") and keep it. The habit works only if your later answers are reliable.
4. 4Physically or digitally leave the pressure: end the call, walk out of the showroom, close the tab. The pull to say yes is strongest face to face and fades quickly with distance.
5. 5Decide in the cold state. Ask what you would say if a stranger had asked, what you would have to give up to do it, and whether you would be relieved if it were cancelled.
6. 6If the offer truly disappears because you asked for a day, note what that tells you about the offer.

When to use it

• •You are asked for a favor, a commitment, or a donation in person or in front of other people.
• •A seller says the price, the place, or the bonus is available only if you decide now.
• •You tend to say yes and then regret it, or to agree in order to end an uncomfortable moment.
• •A small request follows an earlier one you already granted.

Counters

Evidence and how strong it is

The habit is a delay device, and the case for delay is reasonably well grounded. Compliance techniques such as reciprocity, commitment and consistency, and scarcity work largely through automatic responses in the moment of the request (Cialdini 2007), and people in an emotionally aroused state systematically mispredict what they will want when calm, and the reverse (Loewenstein 2005). Zhu, Yang and Hsee (2018) showed across several experiments that mere time pressure leads people to choose objectively worse options simply because a deadline is attached, an effect that weakens when attention is directed to outcomes. Face-to-face requests are also far more effective than people expect, in part because refusing in person is awkward (Bohns 2016), which is the awkwardness the stock phrase lets you sidestep. No study tests the specific habit of a universal deferral phrase, so the link from these findings to the practice is an inference. Evidence strength: good experimental support for the mechanisms; the countermeasure itself is practitioner advice.

1. Cialdini, R. B. (2007). Influence: The Psychology of Persuasion (rev. ed.). Harper Business
   The account of compliance techniques as triggers for automatic responses at the moment of the request, and of delay as a defense.
2. Zhu, M., Yang, Y., & Hsee, C. K. (2018). The mere urgency effect. Journal of Consumer Research, 45(3), 673-690
   Experiments showing that people choose worse options when a task carries an arbitrary deadline.
3. Loewenstein, G. (2005). Hot-cold empathy gaps and medical decision making. Health Psychology, 24(4, Suppl.), S49-S56
   The finding that people in aroused states mispredict their calm-state preferences, which is the rationale for deciding later.
4. Bohns, V. K. (2016). (Mis)understanding our influence over others: A review of the underestimation-of-compliance effect. Current Directions in Psychological Science, 25(2), 119-123
   Evidence that direct requests obtain more compliance than requesters predict, partly because refusing face to face is socially costly.