- Tongue Whistle: And now comes another method to whistle using no whistle. This one is quite simple to learn in comparison to those other methods.
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- Pulling back of lips – Get your lips, both upper and lower tightened against your teeth. Among which upper one should be in some amount visible but the lower one must be completely covered. This position of your almost smiling face without teeth can make more of the sound much louder.
Image Source - Tongue not touching lower teeth – Tongue here must be so properly positioned so that which can make it look wide and flat. And there it must be placed just behind the bottom teeth but not touching it.
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