Push a stream of air from your throat through your open mouth. No tongue or lip contact.

Americans pronounce who as hoo (/hu/). You'll hear it in sentences like "Who has the food?" or "Who took my wool sweater?" — more examples below.
Record yourself saying "who" and play it back. The mic stays on your device — nothing's uploaded.
1 syllable, 2 sounds. Explore each sound's mouth shape and how it's made.
Click any sentence to see the full breakdown — every link, every reduction, every flap-T.