Chew a piece of bubble gum until it becomes soft and pliable
Flatten the gum with your tongue against the roof of your mouth
Push the gum forward with your tongue to form a thin sheet
Place your lips around the gum, leaving a small opening
Gently blow air through the opening
Let the bubble expand slowly
Stop blowing before it gets too thin
Close your lips to seal the bubble if needed
Pop the bubble by pressing it with your tongue or lips