There's no easy way to explain this. Basically, hold the straw so the flaps look like an open mouth. Place it into your mouth. Gently tighten your lip...
Step 4: Step 2 - Adding an Amplifier
Place the other end of the straw over the tip of the cone cup and draw a circle on the cone around the end of the straw. Cut off the tip of the cone. Starting with the flaps, run the straw from the open end of the cone up through the hole until the straw is almost all the way through the hole. Tape the straw to the cup.
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