Forrest: since it's the first/second week, when Diana invites Forrest or he's assigned a day on babysitting or something, basically they hang out but he's kinda off the entire time (thus leaning toward late first week or the second week when he's still bound by plans he can't realistically reschedule too well depending on what it is) and it turns out that this is one of the nights he needs to go feed.
Yvonne: since she tries to come off as such as casual (the errands, the latte, etc.) with her good cop routine, if she shows any sort of vampirism to Diana it has to be intentional but also shameless. she isn't above teasing Diana about her being a vampire, not necessarily a threat but still sort of ominous all the same. telling diana she has to leave to go feed, or show how easily she dances around people manipulation/charm wise, or she can make an offhand comment about how one person or another's blood tasted.
Madison: easier since diana and madi live in the same space, there may be some times where madi arrives super late at night because she had to do something, probably still a bit of a messy eater (honestly i think they all kinda have to be but she's not exactly Subtle or forgot a change of clothes or something bc she was running outta the party hosue or something) but either way every night madi's gone out late before on a weekday or weekend is suddenly cast in a different light to diana.
seb: hardest lmao

Group Scene (any): There's a competition of some sort of who can go get their meal for the night between like two or whatever amount of vamps. Probably a mention of how this is basically what went down on Halloween because sometimes Empathy is Hard.