My younger sister is holding a baby.

The baby is crying.

He laughed a lot when he heard the joke.

He shook his hand in fear.

He was playing by swinging the tree branch.

He is assuming the air of an intellectual.

He was laughing at my idea in a demeaning way.

He always likes to be pedantic, explaining things down to the smallest detail.

She is good at being prudish.

He was putting on airs in his new suit.