to change your leg or arm position so that a different leg or arm is on the top from the one that was on top previously

We often cross and recross our legs to change sitting position.

She stood up, recrossed her arms to show she was getting impatient, and later sighed to get the point across.

The student kept fidgeting, uncrossing and recrossing their legs.

She looked directly at him as she recrossed her arms.

He was clearly nervous, repeatedly uncrossing and recrossing his arms during questioning.