I was walking home from work when I ran into a friend. We aren't horribly close, met in a class, but we've had some good chats and went to lunch a couple of times. Anyway, he was telling me about this thing he was going to get involved with called Quickstar. The more he talked, the more sure I was that it was a total scam, but to be polite, I nodded and said it sounded interesting.
Of course I came home and Googled it--and yes, it is indeed a scam.
So since we aren't that close of friends, how do I tactfully tell him? He's a college student like me, so he doesn't have money to burn on this. I feel pretty awkward about this. What would you do in my situation?