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from Instructables.com

Whistling with your fingers

from wikiHow

Whistle With Your Fingers

Image titled Whistle With Your Fingers Step 7 preview

from The Art of Manliness

How to Whistle With Your Fingers

This is a skill I always wanted to learn, and the Art of Manliness has put up a good tutorial. Don't try it after midnight, when your roommates or neighbors are sleeping. it DOES work.

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