Hello there,
Evelyn's is random when entering the lab or by asking her if there's anything you can help with. Both cases are rng(random) so you might need to re-enter the place a couple times.
Himari has 2 new ones:
-Pool: go to the dealership and she will mention the house pool. Go to the pool and she has a chance to be there (dont go on mondays since the chances are less because is Anna's day)
-Shrine: play the shrine minigame after doing Himari's quest and have her help you. After 3-5 times the scene should happen.