It's alright if they have no bearing on the plot, or are just minor things. What do they do for fun? What do they like? What are their interests?
Alicia: Likes drinking tea, reading and listening to poetry performances, and listening to old music. she's also rather fond of theater, tho that hasn't come up as of yet.
Kattar: Likes action movies, flowers, the color pink, parks, and gardens, teasing Alicia, grabbing her by her sash for no discernable reason, and potentially spreading germs by swapping spit. (But not by kissing)
Mrs. Moon: Throwing parties, baking, she's trying to learn to knit (and has successfully made a hat,) being rich. Though in general, she's very busy, so she doesn't have a lot of time for hobbies, she also enjoys being busy, and running her magazine, "Gossamer and Ambergris."