Peer pressure has been around since humans have been around. Everybody deals with peer pressure at some point. Whether you're friends want you to do something they are doing. Peer pressure can also be a good thing too. If someone in your group of friends is doing something bad all of your friends can group together and peer pressure them out of what they are doing. Now that we have defined peer pressure lets talk about some ways to prevent it.
Here is an example: You are at a party and your friend offers you some beer. You say "I don't know if this is a good idea, what if we get caught," or somewhere along the lines of that. Now the "friend" says "Come on everybody is doing it." What would you do in that situation?Would you choose to drink the beer or say no and maybe be kicked out of your friends group? Would getting caught by the police and having you phone your parents telling them what you did be worth it over these "friends" of yours. The best way to stand up against peer pressure is to just simply say no. Maybe convince your friends that you don't really like beer that much and you would just prefer a pop. But if your friends are offering you some beer you probably shouldn't even be friends with them in the first place. Maybe your friends will understand and they will leave you alone, but if they continue to harass you about the subject, then you should leave and break that friendship with them. Getting in trouble is not worth it for being friends with the "cool" kids.