You are going to very likely hear this piece of advice from your riding instructor frequently in the beginning, “Keep your heels down.” It’s a very important thing to do but it isn’t always that easy for a beginner. Here’s why it is a bit more difficult than it sounds. While you do want to keep your heels down, you also don’t want to shove your heels into the stirrups and end up with your toes pointed upwards. Cramming your heel down is just going to give you stiff and tired leg muscles. This you’ll want to prevent.