I'm straight. Nevertheless, this video is not a very effective test to prove someone else's sexual orientation. I bet there are gays who like manly man (regarding both behavior and appearance), and what this guy is doing is very feminine to a certain extent, and he also seems to have a girly behavior. Hence it follows that it's not because you're gay that you're gonna feel attracted to any guy out there.
The same would happen to me, for instance, if it were a girl doing this video, but if she looked very masculine (muscles and six-pack abs), I wouldn't definitely feel excited, since I do prefer and like feminine and delicate girls.