Just be honest with her without being rude, say something I really just don't think your my type and that there's nothing wrong with you but it's just I don't think it's fair for both of us to have a relationship when I can't feel all the feelings you feel towards me for you. Simple talk a little about why not more importantly but then kinda twist it around and say why it wouldn't work
Nope. Women do the same to men quite a bit. <<< *coughs* lol Why wouldn't you tell her the truth?
Don't tell her 'let's stay friends". Dude, she's going to secretly hope that with time you'll fall for her. 95% of the time, it happens. She might seem happy and be "cool" about it; but majority of the time she's going to try and wait it out.
I rejected a girl because of the way she showed her interest. She was cute. But the thing is I didn't even know her and she was already trying to kiss/hug me until I told her to back off. Later on she asked me to play a game of pool with her so I accepted on friendly terms. Some time later she asks me out on facebook but I decline. She had friends that weren't the best kind of people so that also made me kind of reject her.