What is the etiquette for facebook chat?

So I'm not really a chatting kind of person (over technical means anyway). I don't text or do facebook chat for little small talk. I utilize those things for making plans on relaying information but that's about it. So is it rude to not even respond to someone who says "Hi" or something of the... show more So I'm not really a chatting kind of person (over technical means anyway). I don't text or do facebook chat for little small talk. I utilize those things for making plans on relaying information but that's about it. So is it rude to not even respond to someone who says "Hi" or something of the sort on FB chat? I usually just completely ignore them if I've never talked to them in real life or don't know them that well. Also how should one go about ending a conversation if it needs to be done abruptly?
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