Slow your breathing
Press your tongue to the roof of your mouth
Relax your face
Look away from the trigger
Focus on a neutral object
Bite the inside of your cheek gently
Count backward from 100
Hold your breath for a few seconds
Tighten and release your muscles
Sip water slowly
Think of something serious
Cover your mouth
Leave the room if needed
Avoid eye contact with people making you laugh
Repeat a neutral phrase in your head
Practice controlling your breathing regularly