Tongue snap
Goal: To target tongue elevation and increase sensory awareness of the tip of the tongue 
How: Tongue tip on the spot, suck in slightly to make a scolding sound  
Frequency: 10 snaps slowly each practice session
Remember: Do not click or pop the tongue. Make a snap. Do not let the tongue slide too close to the teeth. Ensure it stays on the spot. Keep the sides of the tongue inside the teeth