You do not have to be a rocket scientist to crack how to whistle. A bit of practice is all that you need to whistle like a pro. Many people can whistle while using their fingers but they do not know how to whistle without using fingers. Even if you do not already know how to whistle with your fingers, you can make things easier by doing it without fingers first. It is all about learning and mastering the basics before moving on to the next step. 

How to Whistle Without Fingers

1. Draw Back Lips

• First, you need to extend your lower jaw slightly.
• Then, pull the corners of your mouth back while making sure your bottom teeth are not visible at this point. It is okay if your upper teeth are already visible.
• Next, you have to ensure that your lower lip is stretched tight against your lower teeth.

It may be a bit tricky for the first time and you can use your fingers to position your lips properly – just press your first and second finger on either side of your mouth to help keep your lips towards the corners. Remember, you do not have to insert your fingers in your mouth and just use them to stretch your lower lip properly.

2. Draw Back the Tongue

You have to be more careful while performing this part because this will determine how long it takes you to learn how to whistle without fingers.

• Simply draw back your tongue in a way that it floats at the level of your lower front teeth.
• While performing this action, the front edge of your tongue will flatten and broaden automatically. Ensure that there is space between the lower front teeth and the tongue.

You have to understand that you can produce the sound of the whistle when you blow air over a sharply angled edge, and the same thing happens when your tongue and upper teeth force air to move through your teeth and lower lip.

3. Blow

Once your lips and tongue are in position, take a deep breath and then exhale. You have to ensure that the air flows under your tongue and through the space between your teeth and tongue. You may have to try it for a few times before you get it right. You can experiment with the draw of your tongue, and the strength of your exhalation.

You should always start with a gentle blow to get a feel for it. If you do it right, you will be able to produce a whistle of lower volume. To get better result, consider using your teeth and upper lip more and direct the air downwards. You have to understand that the focus of the air is everything here. If you do not feel the air on lower side of your tongue, you are probably doing it wrong.

Be always ready to make some small adjustment. Sometimes, you need to adjust your jaws or tongue to get better results. Keep trying and you will eventually be able to find the sweet spot which will help produce a clear, strong whistle.

Keep in mind that you will only be able to get it right a few times in the beginning. Just keep practicing until you learn how to whistle without fingers in a loud and clear tone.

In case you are still having some trouble understanding how to proceed, simply check out the following video:

Other People's Suggestions

"It was a few months back when I decided to learn to whistle without using my fingers. I was able to blow a whistle with my finger, but I could only make a wheezy sort of whistle sound without putting my fingers to use. I practiced a lot, as I knew that was the only way to master the art. It took me months to finally crack the code and learn the right technique to blow a good, solid whistle. My advice to anyone interested in learning how to whistle without fingers is to practice a freaking ton and do not stop. You may look like a moron at times, but do not let this discourage you or else you will lose it all. So, stay consistent and you will reach there."

"Trial and Error: Yes, that is the way to learn it. You may spend some time learning the basics, but you will learn it only when you practice it a million times. I did the same. I tried blowing air both in and out and kept adjusting my lips and tongue to get desired results. I kept doing it for a month and finally mastered the art. Keep in mind that only practice will make you perfect – but practice will also make others think you are crazy. Do not stop; you will soon be there."

"I believe it is all about learning how to wake your tongue's muscles a bit. The tip of your tongue needs to be strong enough to resist the air pressure or else there will be no whistle. If the tip of your tongue keeps flapping, you should practice hard to keep it in place. Once your tongue becomes stronger and stays in place, it will be able to withstand more pressure and help you produce a loud whistle. Just do not stop practicing; that is how I learned and you can too."