My younger sister is good at playing the piano.

Let's do as he says.

Please leave this room as it is.

He has a stammer, so it's a bit difficult for him to speak.

He risked danger and climbed the cliff.

He was standing at the edge of the cliff.

Mama, I'm hungry.

He is living life in accordance with his wants.

He is a very selfish person.

I can't stand her selfish attitude.