Superficial

Lacking depth of character or understanding. In the context of people a superficial person, as name suggests is someone who can only think about things on the surface level. Someone you can only "small talk" to, and usually lacks social skills in general.

"This guy kept talking to me about football during the whole party.. I've never seen someone as superficial as him"

Aura

To have a strong atmosphere, or to stand out from other people. Usually gained by acts that makes you look tough/cool. Aura is given by other people. it has to be earned by making impression or having other people agree you being cool hence, having aura.

A friend: *hits chrollo pose during heavy rain when everyone else takes cover*
Us: "he has aura"