General:
* The child squirmed in their seat, unable to sit still any longer.
* I felt myself squirming under his intense stare.
* She squirmed with discomfort as the doctor examined her.
Figurative:
* The politician squirmed under the pressure of the journalist's questions.
* The company's reputation squirmed in the wake of the scandal.
* My stomach squirmed with anticipation for the big surprise.
With descriptions:
* The baby squirmed with delight, kicking its tiny legs in the air.
* The worm squirmed through the dirt, leaving a slimy trail behind.
* He squirmed in his chair, his face red with embarrassment.
You can also use "squirming" to describe movement, such as:
* The snake squirmed through the grass, disappearing into the bushes.
* The fish squirmed on the hook, trying to break free.