Peer pressure sounds like fun in the moment and like “why did you do that” the next day.

Pressure from people you like does not feel like pressure. It feels like fun, because everyone is laughing, and the part of you with reservations sounds boring even to you. The next morning the room is different: quieter, with the thing already done and the laughing people elsewhere. Both versions are honest, and only one of them is the one you keep.

Imagine tomorrow morning before you answer, in detail, since that is the person who gets the result. Decide your line before you are standing in it. Leaving early is a complete answer and nobody remembers it as long as you think they will.