I notice a lot of people are asking a route for Zoe without understanding that the main character is written to be gay. While it is a possibility that a Zoe route could be added in the future, it is highly unlikely. To avoid this misunderstanding in the future, I feel Rook should make this detail more discreet.
On day 1 Zoe also straight up ask you if you’re gay if you accept Aiden’s invitation, and Mason says he is; if you hang out at the library with Jude you also say you are.
The only day 1 option that I don’t think says it explicitly is hanging out with Quinn at the library, I think the most you say is that Jude is “a pretty attractive guy”.