Someone, usually a teenager who observes other people and how they interact. He or she who is a wallflower may seem antisocial, but probably just wants to fit in. These people are very smart, have strong emotions, and try to understand people. Wallflowers look for friends, and might have a few good ones, and might not. They often want to fit in with other teens, but realize they are too socially awkward to really fit in. So he, she or they would stand on the sidelines, observe others, but are too afraid to let their awkwardness show.
I consider myself a wallflower. I am mostly lonely, but once I get to know people or if people give me a chance, I can show who I really am, and I can show who I truly am, a nice and not-so-different person.