Flinched

You mustn't let the other person notice that you flinched.

Tom flinched.

Tom never flinched.

No one flinched.

I violently flinched at the bang.

I flinched.

Tom flinched involuntarily.

He flinched.

The gazelle's ears flinched to examine its surroundings.

Adriano tried to touch Rima but she flinched away.