When she posts a new photo, video or status update that you like, comment on it with a funny or positive message. Don’t be negative or too try hard, it will piss her off.
Keep doing this for about 3 weeks, so she becomes familiar with you.
After you’ve posted a few comments and liked her status updates, photos, videos etc, go ahead and message her to get the ball rolling.
Keep it brief, ask her opinion on something, so that she will likely respond. Women just can’t resist offering advice, it’s like breathing for them.
If she responds to every message, it means she like you… so keep it up. Each message should be short and sweet, but you should be trying to connect with her. Try to really understand what she lives for, how she feels, and who she really is. Go with that goal and your conversations will be more interesting and connected.
Never rush meeting with her, it should be at least a month and multiple messages before you should arrange meeting in person. Sometimes even longer, depending how many messages you’ve sent and how responsive she is.