They also quizzed them on how far flung or tiny their social networks were, and along with a few other science-y tests (including MRI scans and tabulating all the Sniffin' Sticks data), came to the conclusion that those with a sharper sense of smell had more friends than those who were olfactorily challenged.
No butt sniffing required!
Yes, this may sound weird, but the scientists have a possible explanation. They suggest that we humans, much like our butthole-sniffing dog best friends, may gather chemical information via the nose from our companions, co-workers, and strangers on the subway, without even noticing it. And the good news? We're not required to crouch down and create awkward social situations in doing so.
So, in turn, with more information available to us via our snout (and our brain, which is responsible for important stuff like processing and sorting through the multitudes of information it gets on the regular), a better nose helps us communicate better in social situations.