Almost anyone can create a steady stream of small smoke rings by simply tapping on their cheek as they exhale hookah smoke. Just take a deep inhale from the hookah hose, create a tight 'O' shape with your mouth, and is always around you.

When air is pushed through a narrow space, a vortex is created in the center as the peripheral air is slowed due to drag, resulting hollow cavity in the middle – hence, smoke rings. It may take practices, but you don’t have to be Einstein to master this smoke trick with in Jakarta.