Answer:
Giving into peer pressure can simply be avoided by not caring about what others think. Like take for example, some kids in school want you to do drugs with them, well think of it this way. Once you graduate, you may never see them again. So, it won't really matter what they think of you now because soon it will be all over. Even if you bump into them in the future once your out of school, you guys will probably be adults and will have either forgotten or have moved on from their childish behaviors.
Here another way to get out of it if you don't want any pressure on yourself. talk to your mother, father, or legal guardian about a situation like this. tell them that if someone does ever ask you to do something that you feel uncomfortable doing, come up with something short to text them so they know to come pick you up. And, you could tell them that you would want them to act angry as they are walking up and say something like, "(Your name)! I told you not to come to this party(if you're at a party, you could have them say anything you need them to)! You're grounded!) And have them pull you by the arm, (causing no pain or harm) and take you to the car." Or simply have them call you after you text them and put it on speaker so your friends hear so they don't suspect that you're lying.