Press your lips together, add vocal cord vibration, then release.

Americans pronounce buddy as BUH-dee (/ˈbʌdi/). Stress falls on the first syllable — keep everything else short and quick.
Record yourself saying "buddy" and play it back. The mic stays on your device — nothing's uploaded.
2 syllables, 4 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.
Stress falls on the first syllable, not the others. Stretch BUH — keep everything else short and quick.