How to lift a pen:
Engage the muscles of your right arm and open your fingers. There’s a blue inked object on the work bench. Reach out towards it and, with your fingers, pinch its plastic body and lift.
How to raise your hand:
- From a relaxed position, tense the muscles of your arm, either side.
- Pull the lower arms towards the sky bending at the elbow.
- Stretch out your fingers as if saying hi. Doing so will give you more visual cues that can call attention.