She'd learned to hide her nervousness and behave like other highborn ladies.

To hide his nervousness, Sam tries to buy chewing gum, only to learn that there isn't any in 1869.

Bettger told the manager: "I'm just trying to hide my nervousness."

Jessica forced a smile in an attempt to hide her nervousness.

'You could shut me in there and no one would know,' she said with a half-laugh to hide her nervousness.

The husky man made no attempt to hide his nervousness.

He turned his back on her to hide his own nervousness.

She was trying to seem calm, to hide her nervousness.

I tried to hide my nervousness as we followed the magician into his abode.

Trying to hide her own nervousness, she followed meekly behind him.