两人

There is no reason to be able to do it with your hands, but you must have absolute strength. As long as you have the strength and you make the first move, and people ask you why, even if you say it's just because the other person is unhappy, no one will say that the reason is wrong, and others will even echo it and say, yes, this guy just seems unhappy. It's a pity that he doesn't have that strength yet....