I was trying to act nonchalant and at the same time hide the fact that my hair was wet.

Morl tried to act nonchalant, but his relief was obvious.

How could he act so nonchalant when her father's blood stained his hands?

"Trust me," I said, trying to act nonchalant and breezy.

The others, though, They act nonchalant, like old hands.

She tried to act nonchalant, but her doctor sense was pinging.

Don't you act so nonchalant, Let's both go where the dancing's hot!

He was pretty good, acting nonchalant about it, but I could see the hunger growing in his eyes.

She tried to act nonchalant as she climbed the stairs.

At first he seemed somewhat suspicious, but I tried to act pretty nonchalant.