How can you overcome not being liked?

There are quite a lot of people who get picked on and might feel out of place in their classes. It's sad to watch and even more sad when others don't stick up for them. It could be because of their looks or the clothes that they wear. It makes me wonder if the people picking on others have ever heard of the old saying, "treat others how you want to be treated." The best advice I can give for this is hope for the best but prepare for the worst. But for those of you who're quiet and wonder why people don't like you, you need to tell jokes (even if they're not funny, as weird as it sounds), be yourself. You shouldn't be scared to show people who you are. Tell people what you like to do, make friends. That's the only way people will come to know you.