Try a set of these, and just walk while pumping your arms hard.

Walk quickly in this squat position while pumping your arms.

When the ball fell, he pumped his right arm in triumph.

Throughout the meal they filed by to pump his arm.

Jessie began to pump her arms up and down faster.

The guy came forward and pumped his arm in a dry handshake.

He pumped his arms and legs, moving down the line in tight strides.

She kicked and pumped her arms to no effect: swimming was impossible.

"You run well, but I think you pump your arms too much."

He couldn't pump his arms, either; they were busy keeping the cape shut.