* Describing a feeling: After drinking too much coffee, I felt jittery and unable to concentrate.
* Describing a physical state: The old engine made the car jittery when it idled.
* Describing a person's behavior: The candidate's jittery movements made him seem nervous during the interview.
* Describing a situation: The news of the layoffs created a jittery atmosphere in the office.
* Describing a film or video: The shaky camerawork in the horror movie gave it a jittery effect.