Do you do this? Be honest. Is it okay to laugh at your own jokes? Do you find it off-putting when someone does this? If you laugh at your own jokes, do you only do it silently because you don't want to look like a tool? I have no shame, so I fully admit that I do this. For example, I can't look at my new avatar without at least smirking. If someone is enjoying themselves and it's not hurting anyone, who gives a shit? Obviously if someone is telling a joke it's because they also think it's funny. That said, there's a line somewhere where it becomes obnoxious. Which, to be fair, can be said for most things.