Counting on one hand, I can name all the countries I've visited.

She stood on her hands and did a handstand.

He stands on his hand.

She is standing her hand on the table.

She sits on her hands during the meeting.

She was sitting on her hands, waiting for the bus.

She sat on her hands during the meeting.

He overplayed his hand and lost the game.

He often overplays his hand in negotiations.

He is overplaying his hand in the negotiation.