1. Sometimes you have to switch it up.

This means that sometimes you have to change something in your life, like your clothes, your hair, or where you go out, to keep life interesting.

2. You might even surprise yourself.

You say this to someone when they are doubting their ability to do something, and you think that they would be good at it. Someone might say, 'I don't want to do martial arts because I won't be very good at it'. You could reply, 'Try it. You might even surprise yourself'. You want them to try it because they will be better than they think.

3. Your smile is so dope.

You would say this when you think someone has a nice smile. This phrase would most likely be used in the U.S, but not in the U.K.