In Spanish, How do you make commands to your pets?
I also want to train my dog in Spanish so please help me translate:
How do you say these:
Sit, Go out, Stop, Bark, Jump, Quiet, Go Up, Go down, Drink, and Eat

Question

Answer

- Sit = siéntate
- Go out = sal, or afuera
- Stop = para or alto
- Bark = ládra 
- Jump = salta or brinca
- Quiet = quiéto or tranquilo
- Go Up = arriba or súbete o párate
- Go down = abajo or agáchate o bájate
- Drink = bebe 
- Eat = come

Answer

There are many Spanish variants. Antonio and Etel have given you translations for the Spanish spoken in Argentina. These are translations for those commands to Spanish spoken in Spain:
siéntate (sit), sal (go out), alto (stop), ladra (bark), salta (jump), quieto (quiet), arriba (go up), abajo (go down), bebe (drink), come (eat).
Note there is no written accent in most commands in Spain's Spanish (example: 'ladra' in Spain, 'ladrá' in Argentina).
Anyway, I agree with Etel, people here usually train their dogs using English commands because they are shorter and can be given in a single shout.

Answer

I would say:
sentate (sit), salí (Go out), basta! no! (stop), ladrá (Bark), saltá (Jump), tranquilo, quieto (quiet), arriba (Go Up), abajo (Go down), tomá (Drink), comé, tomá (Eat)
I think it's much better to train your dog with your own language because words are shorter than the Spanish ones!! Take care! Best!

Answer

Sit, Go out, Stop, Bark, Jump, Quiet, Go Up, Go down, Drink, and Eat
Sentádo, salí, alto, ladrá, saltá, quieto, paráte, agachado, Toma, comé.

This words can change depending on the place, country or city.

Answer

Hasta hace 15 días tuvimos una "pequeña" de raza French Poodle. Ha muerto y nos ha dejado sumidos en la tristeza, con los  recuerdos de 16 años de vida. Jamás obedeció ninguna orden. Siempre hizo lo que "ella" quiso.  Recibimos de "ella" mucho amor y nosotros también la amamos mucho.