Building confidence requires commitment and dedication. Arrogance simply poses to be self sufficient. In fact, it's easy to come off as arrogant. An arrogant person will rarely say, I don't know the answer, but I'll find out. Confident people admit mistakes and learn something from those experiences. Arrogant people can't see the strengths in their competitors, and if they do, they seek to minimize those competitors by bad-mouthing them.