Girl sending mixed signals?

[Master_Flynn]

What does it mean when a girl is sending mixed signals that she likes you? This girl seems to always be smiling around me, she introduced herself when we first met, and she often asks how I'm doing. But on the other hand, she doesn't start conversations much and took a while to accept my friend request on Facebook. What could this all mean?

[CrimsonJay]

She's probably really shy. Either that, or she is smiling at your friend or someone else that is stalking you. But, she's probably just shy.