The fact that Kita mentions Bocchi so much at her home that her mom thinks she's in a relationship with her is probably the best Kita/Bocchi moment without it being an actual Kita/Bocchi moment.
^^ OK, I thought she misunderstood what she was supposed to do, but now when I read your comment and looked back at the image I realized, yeah, she understood correctly, she was just too embarrassed to act accordingly