When your pet’s hunger bar (located on the bottom right of your Seal Online window) gets low enough, your pet will begin to talk to you, asking for food.

When this happens, click on your pet to open the feeding window.

Place any item into the “food” slot and press Feed.

Your pet will request a specific item to eat, and if you give it that item, it will gain more EXP.

However, you can choose to feed your pet whatever item you want.

If you don’t have any items to feed your pet, you can play with it instead.

This will fill its hunger bar, but your pet will not gain any EXP.