How do you level your pet in maple story

Pets in Maple Story will level up by gaining "closeness" to their owners. One can go about increasing their pet's closeness in the following ways:

Giving commands
Each type of pet responds to a specific set of commands, which will sometimes raise their closeness 1-3 points. To know which commands are effective for your pet, talk to Cloy in Henesys Park. Also, note that using some commands requires the pet to be at a certain level.

Feeding
Giving Pet Food to a pet whose fullness is under 100 occasionally increases its closeness by 1 point. You can also buy breed-specific treats from the Cash Shop to feed your pet, which will increase its closeness by 100 points (per item). The latter, however, costs real money.

Pet Parks
There are repeatable jump quests available in Henesys Pet Park and/or Ludibrium Pet Walkway, which require you to deliver a letter from an NPC at the bottom of the map to another NPC at the top via a series of obstacle courses. Your pet is awarded a small amount of closeness upon completion.

Quests
Some quests, such as Fanzy the Mysterious Cat or Kenta's Advice, offer closeness as a reward.