Deep Dark Secrets for that Halloween thingy, go!
Choses the pumpkin: Rixyin, probably. I don’t see Geytri caring about pumpkins all that much, but she would coax him into putting in his two cents every now and again until they pick out one that she (and him, though he doesn’t voice it) is happy with.
Carves the pumpkin: Again, Rix. Geytri’s probably too busy, so he’d let her “have all he fun”. But she’s going to carve it in his office. She’ll keep the mess to a tarp-covered floor space. But as soon as he takes off that expensive shirt she’ll probably chuck pumpkin guts at him.
Gets scared and clings the other in a haunted house: Neither. Rix is a kick ass bodyguard and Geytri is too serious and mature to be bothered by much. (Also he’s got a kickass bodyguard.)
Matching costume idea: Hah hah no. Rix might wear a suit to match Geytri’s. Maybe. Even that’s pushing it.
Makes a cozy bed-fort to cuddle in: Geytri! Rix gets a little edgy from a nap-nightmare, and he’s feeling a little playful so he makes a surprisingly badass fort and drags her inside for cuddles and slow makeouts.
Steal’s the other’s candy: Rix “steals” some of Geytri’s. Only the pieces she really loves. And they both know she’s not really stealing it. He just pretends not to see it. Once she gets a feel for what he likes the best she’ll take from her stash to drop in his to make it an even trade.
Accidentally gets lost in a corn maze: Not sure? I don’t see either of them being up for a corn maze…
Tells spooky stories to scare the other: Rix says she will, but they’re really not very scary; most of them are stories about her shush papping angry highbloods. Geytri knows better than to tell Rix horrifying stories, she’s got enough nightmare problems.
Collects cool-looking leaves: Geytri, probably. Rix might start pointing a few out and he decides to frame them in his office for a bit of color. (Yay, memories.)