Some people use the term 'over confident' to describe somebody as being cocky, but I think being over confident can either define somebody who is cocky or just generally too sure of themselves without giving it another thought, but does not have an attitude (relaxed about it rather than gobbing off).
Its a thin line between the 2 imo, but when somebody uses their confidence to big themself up too much, is when I think a person is cocky.
What about you's?
