How do you tell your horse to trot in German?

To tell (or ask) your horse to trot in German is:

"Gehen Sie zu einem Trab."

Translation is: Go into a trot.

Some how I seriously doubt that any horse would understand that much German, let alone the formal (Sie) conjugation of the verb!

Even if you did say such a thing to it, horsey people are intimate enough with their horses that they would use the informal Du form!

Just use the stirrups and reins