It's childish, which means that he doesn't tend to take a lot of things seriously. This representation is how most boys or men (not all of them) aren't the serious type. It's masculine because most of the time is men that portray this
He has sarcasm in his voice, so he a joker again we can tell that he doesn't take most situations seriously. We do see a softer side to him as well though , that is when we see him talking to his wife/girlfriend it's sincere, calm and loving. Both feminine and masculine. His wife/girlfriend s voice is calming, she's is his support it provides strength .