Never played it. I'd choose truth if I thought anyone could delve deep enough into my psyche. Once they did, they'd go insane and start murdering people. I'm freaky.
If I had to choose dare, I'd threaten my dare-giver first to make sure they chose something that a human could and would in their right mind do. If it's something that only a psycho would do, I'd have to kick them in the face.