A person who poses to be a poser just to get attention. Usually has no social group and little to no friends.

To pose: To pretend, to be somebody you're not, to be part of a culture or genre just to fit in.

A poser is someone who tries to fit into a profile they aren't. People who try to give off the impression that they are one thing when they are really another.
Also, a poser can be one who says they can do something that they can't.
Or more commonly, a poser is someone who, when doing something successfully, takes more than enough credit for it.

Kids that bring their skateboards to school.

1.one who pretends to be someone whose not.
2. who tries to fit in but with exaggeration

A person who attempts to blend into a specific social group.

a person - usually in middle or high school, who is insecure about him/herself and trys very hard not to be a "conformist" or a "prep," by doing things like: purchasing a skateboard or guitar, purchasing a great deal of clothing and accessories from hot topic, and listening to pop-punk bands such as simple plan, yellowcard, etc. usually, this supposedly "nonconformist" behavior just backfires on him/her, because now he/she is still conforming, just to a different group of people. so the moral of the story is to be yourself.