He pushed the door open with his hand.

He has a unique character.

The Japanese dormouse, a small mammal unique to Japan, is very cute.

Mr. Yamane is my best friend.

He imitated her and provoked laughter.

He was born mute.

He is mute, and cannot express his intentions with words.

He cannot speak because he is mute.

He is good at imitations, always making his friends laugh.

He was observing the movement of the pendulum.