learn to whistle between my fingers

the secret is all in the shape you make your tongue…it’s somewhat difficult to explain without a picture, however you shape your tongue in a ‘cupped’ shape with somewhat of a ‘spout at the very end and the pressure applied to the tongue by the front teth creates a small opening…air forced thru makes the loudest whistle imaginable…I tried all-day (in one day) and had mastered it in les than 25 hours..I can whistle ‘louder’ than about anyone now…with or without the use of fingers on my tongue… it takes repeated (non-stop) practice to perfect the technique, but once you start making a whistle sound it comes quickly…my whistle can be heard for well over 6 football fields in a wooded environment now…PRACTICE!