Simple things you don't know how to do?

[the-pi-guy]

For a really long time I didn't know how to snap my fingers.  I figured it out during high school, and can now snap with all 4 fingers and even do it consecutively.

I still don't know how to whistle.  

Is there anything you can't do?  

[nnodley]

Can't whistle.   No matter how hard I try I can never do it.

[Legend]

Ditto op. I'm the exact same.

[Xevross]

I can't whistle either. Also can't snap with my left hand, only my right.

[Legend]

I can't make bubbles with bubble gum.