strike a pose
To assume a dramatic or exaggerated bodily attitude or position, as for a photograph or portrait. After the serious wedding photos were finished, everyone struck a silly pose for a funny picture. I always feel awkward striking a pose for these publicity shots. It always feels so forced.
strike a pose
to position oneself in a certain posture. Bob struck a pose in front of the mirror to see how much he had bulked up. Lisa walked into the room and struck a pose, hoping she would be noticed.
strike a ˈpose/an ˈattitude
sit, stand or lie in a position in order to attract attention: He was striking a pose, leaning against the ship’s rail.