How do you tell if your in love or falling in love?

If you feel she is very special to you.

All of this is going to sound very cheezy, but this is how I feel sometimes.

If you walk into the same room as her/him sometimes you feel this quick shy feeling or you can never stop thinking about this person. If it's someone you've known and hung out with before, you'll remember all the details and how much fun you've had! When you get the feeling, you'll know