his/her/your hand
Ella usó su mano para proteger sus ojos de la luz del sol.
She used her hand to shield her eyes from the sunlight.
Tom tiene algo en su mano.
Tom has something in his hand.
Ella agitó su mano hasta que el tren estaba lejos de vista.
She waved her hand until the train was out of sight.
Metiendo su mano en el bolsillo, Dima sacó una gigantesca maleta.
Reaching into his pocket, Dima pulled out a gigantic suitcase.