Don't pay attention to them.
When you look at them, give the "who the f*ck are you" check.
Talk to other chicks, maybe get a hug and kiss from a female friend in front of a hot target.
If they call you over, don't go over until they're frustrated.
Don't listen to them or answer their questions directly.
Once you have their 1 on 1, undivided attention, then create contact. Tell her a story. Maybe move in closer and randomly break boundaries but then pull away to rant while staring in the other direction.
Demonstrate your ability to read way beyond normal comprehension for your peers. She'll laugh but she'll been focused on you.
After she stays the night, just eat breakfast. Watch TV, and pretend she isn't even there.
Act like you didn't meet her yesterday. She's some stranger in your house.
Give her sideways looks and maybe smile.
Offer her some food and run your fingers through her hair.
This is my 2 year old's toddler game. Very effective.