Hephaistion had to had it to them, Demeter Cabin really did know how to throw a party, and of course he would make it a point to show up for Jehan's birthday. (He kind of feels he missed an opportunity by skipping celebration of his own birthday a couple months ago, but it wasn't important. Except for the food.) His compliments to Peeta for organizing this.

He seeks out Jehan first, not wanting to pull the birthday boy away from his social obligation to share his adorable self with everyone, but he also didn't want to go without pinning him down for at least a few minutes.