Getting the guys friend to do the talking for me?

I like a guy who I'm already friends with (we'll call him C). We have a few friends in common. One of those mutual friends (we'll call K) knows I have a HUGE crush on C. I tried to get a "group date" to happen but it didn't work. No one could make it. I had this idea to get K to talk me up or drop hints to C. But my friends said it was stupid idea. I'm starting to think it is too. Is it? I really just want to give up right now. 1. I know he doesn't like me 2. My ideas are dumb 3. If we're already friends and I have trouble talking to him what's the point? Any feedback or advice will be helpful (: