Bergen has a sniffing problem.
He sniffs you if he likes you.
(I have no reason to make this up.)
I get sniffed pretty often. Usually routine, run of the mill type sniffing. My hands. My arms. When we are cuddling - my neck. Sometimes my hair. Just sniffing of the normal variety.
Kevin - now that guys gets sniffed. And how! Bergen just hovers around and over (maybe even under on occasion) and sniffs Kevin. Sniff. Sniff. Sniff. For as long as Kevin will allow. (For which he has gained an amazingly high tolerance, as a matter of fact.) Lately he has been experimenting with a new sniffing location - under Kevin's armpit. And when he emerges from the pit, he generally comments, "You smell good." So that's a plus.
And there's another little guy that Bergen has a fondness for smelling as well. Yeah, you guessed it. Wilder. Bergen sniffs his little brother so much that we always say he is trying to absorb him. As in, "Bergen Hawkeye. Stop absorbing your little brother."
So I guess if you want to know if this four year old likes you - hang out with him for a while. If he sniffs you, you're in!