Most Helpful Guy
If his hair (e. g., bangs) fall out of place, brush it back into place.
Ask him what he's doing that night, or during the weekend, or if he's going to a certain event/party.
Adjust the top of your stockings right in front of him.
Unbutton his top button.
Pull his tie gently. Oh, you're 17. Never mind.
Run your finger back and forth over his chin.
Bite your lip. Flip your hair. Stand close in front of him.
Maintain intense eye contact in every case above.