Brian jumped in his seat and almost cried out aloud.

He jumped forward in his seat as if he'd just seen a ghost.

He jumped in his seat, and then turned to face her.

Everyone else jumped in his seat, and then tried to look as if he hadn't.

Foster even jumps in her seat during the scary parts.

He must have jumped a full inch in his seat.

His voice belled out so that I jumped in my seat.

Nick ran around the back and quickly jumped in the driver's seat.

George ran around to the other side of the vehicle, jumped in the driver's seat, and prayed.

I put my hand over hers; she jumps in her seat.