The imperative verbs are used to express commands, orders, requests, requests or wishes.
Vayan a la mesa. Vamos a cenar.
Díganme qué quieren beber.
Salgan a la terraza para tomar el café.
Son bienvenidos a esta casa.
Coman el pastel de fresas o el de piña.
De primero prueben la ensalada de aguacate.
Siéntense en estás sillas, son muy cómodas.
Translation
Go to the table. Let's have dinner.
Tell me what you want to drink.
Go out on the terrace for coffee.
You are welcome to this house.
Have the strawberry or pineapple cake.
Try the avocado salad first.
Sit in these chairs, they are very comfortable.
I hope that helps.