He likes the hand holding. He's been doing a lot of it with Spike lately which has been a by unexpected but very enjoyable. He didn't think it would be the sort of thing the vampire would go for, and has been a pleasant surprise. So he takes Jack's hand happily, lacing their fingers together, knowing people will see that and the bruise and make assumptions that he loves. Maybe this day won't be so bad after all.
"Alright. I have a hard time picturing you on a water slide anyway so I'd like to see that."