No need to work out biceps?
So i was talking to this juice head that works at starbucks and he laughed at me when I told him I do legs and biceps in one day. And I quote "brahh you don't need to work your biceps out, they get enough exercise when you're doing other muscles." I donno how I feel about this but if I don't work my biceps out they don't look as big.
Any truth to this?