"He that walketh with wise men shall be wise: but a companion of fools shall be destroyed."

-Proverbs 13:20

This Proverb is trying to tell you that depending with who you hang out with, that is the person you will be. If you hang out with good people eventually you will become good and the same goes if you hang out with bad people. This is the reason why you have to choose your friends wisely, pick the ones that you know are  going to be good for you. For example, if you hang out with the bad crowd you will start doing bad things. You will end up being in jail and even worst you can get kill! They might be the coolest kids there are, but trust me they aren't worth getting in trouble for. Just like you can have bad influences you can also have good ones. For example, if you have good influences as friends, even if you are bad yourself you will become good because they will eventually rub off on you. Now for some people it is different, they aren't easily changed for good or bad. For example, I can hang out with bad people, but that doesn't mean I will become bad myself. I don't let people have that effect on me where they can change me. Hanging out with troublemakers doesn't mean you will become one of them, at the end of the day you are the one who makes that decisions. If you let others change you for the bad then it was all because you allowed it. To make sure you don't become bad just hang out with good people.