> I consider it rude to demand someone's attention for an extended period of time without asking for it first. You know that that's why he's saying 'hi' right?

> I consider it rude to demand someone's attention for an extended period of time without asking for it first. You know that that's why he's saying 'hi' right? It's his way of asking before taking your attention. And if you don't want to, you can just wait until you do, or say 'sorry, busy'. From what you say, it sounds like you both think that the other person is rude, but that you are doing it on purpose.