In the U.S. Presidential election...
I'm voting for a major party candidate (Democrat, Republican)
I'm voting for a fairly well-known minor party candidate (Green, Libertarian)
I'm voting for a lesser known minor party candidate. (Boston Tea Party, Prohibition Party, etc.)
I haven't decided who or what to vote for... or against.
Voting only encourages them!
I can't vote in U.S. elections.