Mugged

verb

1. To strike in the face.
2. To assault for the purpose of robbery.
3. To exaggerate a facial expression for communicative emphasis; to make a face, to pose, as for photographs or in a performance, in an exaggerated or affected manner.

   "The children weren't interested in sitting still for a serious photo; they mugged for the camera."

4. To photograph for identification; to take a mug shot.
5. To learn or review a subject as much as possible in a short time; cram.