There's a sticky in this forum for scents that get you compliments, though i doubt that fragrances work that way. There's no love potion and from your describtion i can't imagine your son wearing a heavy gourmand or something that announces your presence when you enter the room. He should feel comportable with his scent. I guess L'Eau D'Issey pour Homme is pretty save for daytime wear and some women seem to like it, too. If he likes wearing perfume, get him a Creed of his choice.