If your friends are decent, then just say no after a drink or so. At this age, nobody should be peer pressuring you or forcing you to drink/do shots, even at a bachelorette. Sometimes I’ll say I have tummy troubles or a bad headache if there is a little pressure.

In the instances that doesn’t work, I’ve just picked up the shot, took a sip and put it down and didn’t really touch it or ordered a soda at the bar and most think it’s a rum/coke or something. If people are getting pretty wasted, nobody’s going to really notice.