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

Americans pronounce how's as HOWZ (/haʊz/). You'll hear it in sentences like "How's it going?" or "How's your new apartment?" — more examples below.
Record yourself saying "how's" and play it back. The mic stays on your device — nothing's uploaded.
1 syllable, 3 sounds. Explore each sound's mouth shape and how it's made.