Every time I step into this guy's office at work, whether he's alone or talking to someone else, the moment he sees me he bends down in his chair and pulls his socks up while he talks to me. It happens almost every time. Is this just a nervous twitch? A quirky habit of his? Is he preening? I understand the need to adjust socks when they fall down, it gets uncomfortable, but why does he feel the need to do it every time he sees me? I'm curious what you think.