1. Exhale completely before starting to inhale. The idea is to be able to create suction for at least 5-7 seconds giving you enough time to spin around and pass the card.
2. If a boy and girl are different heights, the taller of the two will need to get down to the level of the shorter person so their mouths align.
3. Be sure to get a good suction before starting the turn or else your loose it by jumping the gun.