Mi hermana y yo íbamos a los cumpleaños y las bodas todos los meses. Primero, íbamos a las casas antes de las celebraciones. Segundo, veíamos a los invitados bailar y comer. Finalmente, nos invitaban a comer. Based on the text, what did the siblings do second at the family parties and weddings?

They used to dance.
They used to go to people's homes.
They used to eat.
They used to watch people dance.