My girl seems to really enjoy helping out in the kitchen, and I try to encourage that. Cooking together can be fun, messily delicious, and a great way to teach them some life skills. She also loves art so anything creative seemed to have caught her attention. I let her explore with different materials, and recently she's been into painting rocks which is quite a nice little hobby. We also enjoy reading together, and she has this little habit of picking books with strong female characters, which is really cute!
I find that taking her to community events or exposing her to various sports also helps gauge her interests. She took a liking to Zumba recently, which was a surprise, so we might sign up for some mom-and-daughter classes soon. It's fun discovering the world through their curious eyes!