Hey it's a thumb!

Little T's OT poked his right thumb in some theraputty and showed him how his thumb made an impression. Then she pushed his left thumb in the same putty and showed him how it also made an impression. He stared at his left thumb in fascination. I could see the little light bulb go off in his head, "Hey it's a thumb!"

He now moves his own left hand onto the bar of his stroller. He shrugs his shoulder up or uses his right hand to lift up his left hand. I've putting both hands on the stroller for months.