1. Go to the stable. The stable is located on the left side of the main courtyard.
2. Approach the horse. Click on the horse you want to feed.
3. Click on the "Feed" button. The "Feed" button will be displayed on the right side of the screen.
4. Select the food you want to give the horse. You will be able to choose from hay, oats, and apples.
5. Click on the "Feed" button to give the horse the food.
6. The horse will eat the food and its hunger meter will be filled.