So I don't have any kind of overwhelming body odor and I usually use a little bit of old spice Fuji every morning before I head to school, which usually leaves me smelling rather neutral. I noticed when a fellow man came over to a friend (girl) I was talking to he had a good amount of cologne on, and to be honest it was pretty damn good smelling. She immediately got a little closer to him and warmed up to him very quickly, even though he didn't offer very much intellectually, physically, or anything else. But holy hell he smelled amazing.

Are my observations wrong? Also, what kind of smells do you use/recommend?

TLDR: Smell is powerful tool, how do I use it?