Raise the back of your tongue to touch the soft palate (velum). Stop the air, then release.

Americans pronounce cows as KOWZ (/kaʊz/). You'll hear it in sentences like "He wakes up early to milk the cows every morning".
Record yourself saying "cows" 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.
Raise the back of your tongue to touch the soft palate (velum). Stop the air, then release.

Start with a dropped jaw and flat tongue. Glide into a relaxed, slightly rounded lip position as the back of the tongue stretches up.
Same position as S, but add vocal cord vibration. Feel the buzz.
