If you repost poorly photoshopped images of Bill Gates with lame messages (in crappy comic sans font) or photos of promises from "Lotto Winners" in the hopes that you will actually get anything out of it (besides a virus),
Also, if you really thought Southwest Airlines was going to give away free tickets for you and a friend, I have your real answer here:
I know the people who set these up are awful humans who prey on the wishful thinking of others, but can we at least try to wisen up to the spam? Please? Okay? Okay.