Oh this is nice!

John: He likes to read. Not just the bible, but also general philosophy and theology, as he likes learning about other's interpretations of faith. He also enjoys cooking, even though he's not too adventurous with it (though he has made an effort to learn a few things for Garcia). Technically not a hobby, but he also likes to sing. He has a good voice and has performed at church a few times, and can often be heard singing 80s pop songs to himself around the house.

Garcia: He enjoys puzzles and games. Often has a jigsaw of something on the go at any one time, and is always up for a game of chess or dominoes, or less often a card game. Unusually, he can also juggle, make balloon animals, and do simple sleight of hand tricks (John doesn't ask about this, he doesn't want to know).

Lisa: Airsoft confirmed that Lisa is an artist! She likes painting most of all, but will sometimes do sketchy pieces with pencils and markers. She mostly does weird, abstract, expressive scenes, but has sketched the guys on occasion. She also does yoga, and similar low-impact exercise. She also drags John into it to help with physio for him (his joints get tight a lot).