You need a really sharp eye to notice some of these but i swear they make a…

Use ease out for entrances. Keep drop downs at 150 to 250 ms. Stagger list rows by 30 ms. Scale buttons to 0.97 on press. Stretch moving knobs by 12%. Stagger when details settle. Use arcs for object movement. Use a pulse to confirm success. Use ease in out for on-screen

movements. Start popovers at scale 0.95. Transition in from the trigger, not from the center. Transition out to the trigger. Don't fade into the center. Don't use spring bounds for everyday UI transitions. Don't tween a handheld animation. Make exits about 20% shorter than

entrances. Bring the new state in as the old state leaps. Use masks for reveals and color changes. Crossfade icons with scale and blur. Rubber band past drag boundaries. Reuse the same layout ID across shared objects. Follow for more.

same layout ID across shared objects. Follow for more.