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

Americans pronounce humble as HUHM-buhl (/ˈhʌmbəl/). The L in "humble" is a dark L — the back of the tongue rises toward the soft palate, adding a small "uh" quality before the L. This is called the Dark L vs Light L, a small move that separates 'classroom' from 'native'. It comes out as HUHM·buhl. Stress falls on the first syllable — keep everything else short and quick. You'll hear it in sentences like "In my humble opinion, we should take a more cautious approach".
Record yourself saying "humble" and play it back. The mic stays on your device — nothing's uploaded.
2 syllables, 6 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
The textbook way isn't wrong — it's just not how anyone actually says it.
The L in "humble" is a dark L — the back of the tongue rises toward the soft palate, adding a small "uh" quality before the L. Dark L adds a small schwa-like "uh" before the L. The back of the tongue lifts toward the soft palate.
Stress falls on the first syllable, not the others. Stretch HUHM — keep everything else short and quick.
Don't pronounce the first syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.