Place the very tip of your tongue slightly between your teeth. Blow air gently around it without voicing.

Americans pronounce throws as THROHZ (/θroʊz/). You'll hear it in sentences like "The technical foul resulted in free throws for the other team".
Record yourself saying "throws" and play it back. The mic stays on your device — nothing's uploaded.
1 syllable, 4 sounds. Explore each sound's mouth shape and how it's made.
Place the very tip of your tongue slightly between your teeth. Blow air gently around it without voicing.

Curl or bunch your tongue without letting the tip touch the roof of your mouth. Brace the sides of your tongue against your upper back teeth, and round your lips slightly.
Start with your mouth slightly open, then close your jaw slightly as your lips round. Shift your tongue back slightly, then stretch the back up.
Same position as S, but add vocal cord vibration. Feel the buzz.
