Tell her it's opposite day and then ask her inside When she doesn't laugh at this ridiculous joke, say, "I'm kidding, I just like your hands. Will you touch me?"
If this is too creepy for you (and presumably her), then simply open your gob and speak to the girl confidently and respectfully. Lure her with pleasant small talk and then walk as you talk so she walks with you.Stare in her eyes and smirk and lick your lips periodically. Then ask if she wants to continue the conversation later while standing still facing her