1. Bench angle: 30~45 degrees (if too upright, shoulder involvement increases) 2. Grip: Dumbbells should be slightly inward with palms facing (neutral to slightly rotated) 3. Starting position: Scapula retracted and depressed, chest open and shoulders fixed 4. When lowering: Dumbbells should come to the side of the upper chest, elbows about 45 degrees apart 5. When lifting: Slowly push the dumbbells upward while feeling a slight gathering 6. Breathing: Inhale while lowering, exhale while pushing 7. Caution: No bouncing, ensure dumbbells do not collide with each other