How do you make play duh?

It seems you're asking how to make a "play duh" sound.

This is a slang term that refers to a silly or stupid sound or action.

Here are some ways you can achieve a "play duh" sound:

* Make a "duh" sound with your voice: You can say "duh" in a slow, exaggerated way. You can also try making the sound by slightly closing your mouth and pushing air out of your nose.

* Use a sound effect: There are many sound effects that could be used to create a "play duh" sound, such as a loud "bong" or a high-pitched "whistle".

* Create a physical action: You could slap your forehead, scratch your head, or make a silly face to create a "play duh" sound.

Ultimately, the best way to make a "play duh" sound is to use your creativity and find what works best for you.

Do you have a specific context in mind? Knowing more about what you're trying to achieve will help me give you a more precise answer!