He is a bit absent minded at times with little regard for whatever situation he is immediately in such as when he tries withdrawing cash during a bank robbery with armed thieves. Despite his seemingly carefree nature, he is a genius thinker and able to quickly assess information.
SpoilerBeing a Minimum Holder, Nice possesses supernatural abilities of "seeing" sound. This ability most likely allows him to manipulate sound. In order to use his ability, however, Nice must place his headphones around his ears.
SpoilerSound Manipulation: Nice is able to perceive sound, which may allow him to manipulate it. How he uses this power offensively remains unknown.