If it was one of the three, was he secretly laughing to himself?

When it came, the voice from the speakers seemed to be laughing secretly.

The others tried to hide their emotions, but he could see they were secretly laughing at him.

He sounded as if he were secretly laughing at me.

The two are secretly laughing at the lion and his poor stealth kills.

The suspicion that she was secretly laughing at him ruffled his feelings.

He'd laughed secretly to himself at that one.

I saw Cathe smile slightly, as if he was secretly laughing at me.

Part of her still suspected they were secretly laughing at her.

She wasn't sure that he wasn't secretly laughing about something too.