Ella esta levantando la mano.
You say, "¡Mueve la mano!"
Abanico
buena mano
I don't think there is a proper hand to raise when, say, asking a question. More likely, it's a matter of preference and comfort.
Sostén tu mano
Levanta su mano.
Levanta su mano.
hizo todo a mano
¿Qué está en la mano?
Customarily, the right hand.
You say it by escreeto but it is spelled escrito = 'written' (hand)writing = escritura (esscreeTOORah)
"Hombre de manos grandes"