It's always strange / hilarious when people talk in third-person narrative when they should be talking in first-person. For example, if I wanted a taco, and I said "Mike wants a taco! BRING MIKE A TACO!", that would be weird. Yet it happens. Bob Dole has a habit of referring to himself in third-person.
However, a habit I have never seen successfully executed is talking in third-person when one should be talking in second-person. For example, if I am having a conversation with Harold, and I say "Harold looks hungry. Would Harold like a taco?", that would be even weirder. And more hilarious. I think people should do it more often.
Another fun thing to do is to make it seem like you used the wrong word when you didn't. Like if you say "my parents really effected my life." Or "the thing I don't like about winter is its cold."