She hid her amusement at his abrupt turnaround quite well.

He managed to hide his amusement at her obvious discomfiture.

One way to have a little privacy, he thought, and hid his amusement.

"That's what you get for being honest," said Marx, making no attempt to hide his amusement.

The guard made no attempt to hide his amusement.

And this time it was Rissa who had to hide her amusement.

"Right this way," said the man with the southern drawl, not hiding his amusement.

Three jumps and he'd wait, not hiding his amusement at our attempts to catch up.

The other doctor did not try to hide his amusement as she excused herself and led the captain to the ship.

Gerti couldn't hide her amusement, and didn't even try to.