I wouldn't like it if a guy approached me in that manner and just thrust his penor into my face through his jeans and I was pretty much forced to have my eyes flit down there. I don't want to see your crotch. Stop thrusting your crotch in my face. It wouldn't matter if he was being amicable and forward in trying to talk to me, I'd rather him maintain that whole lax "I'm not trying to subtly stare at your bewbs and decide if I prefer B/C cups over C and DD cups" because then it shows that you're not trying to asses me in just a physically sexual manner. Body language means everything in the approach to a girl so one could consider that too when conducting a social experiment like that. Plus that video was all sociological based and it didn't have a wide selection of chicks. It doesn't really prove much.