Pucker up. Give a little whistle. It’s not important whether it’s an operatic aria or a wobbly melody. Whistle along with birds if you wish. Just enjoy the feeling of being your own instrument. There’s always the “Hey, taxi” two finger in the mouth whistle. Excellent for calling wandering dogs, as well. For this they tell us to loosely touch the tip of a bent index finger to the tip of the thumb of the right hand. Press your lips down against your fingers, making a “V” and blow. But, if you go out and buy an Irish tin whistle—that’s cheating. AF