[Newt can't help but immediately turn red when the other starts laughing. He can guess why Hiccup was laughing and he can't help but feel embarrassed about it. For someone who kept track of such tight schedules, the actual day was something he didn't acknowledge. Or more accurately, he tended to forget about particulars pertaining to himself.

Like his birthday.]

I-It isn't like I'm going to go out of my way to celebrate it alone. Unless you think I put party hats on my creatures and expect them to sit still long enough to do so. [Newt pulls his hand out of Hiccup's grasp. He isn't actually upset, but he surely looks like a sulking child more than anything.

Something that is hard to maintain when Hiccup is so sweet on him.] I don't really wish to go out. [He finds that wait staff will question them for small talk and the idea of revealing the festivities would give them unwarranted attention.] That is- It's your birthday. If you rather go out- [He'll gladly go out for Hiccup though.]