Sun gives a shirtless Jin a sponge bath, which is apparently the Korean method of treating a head trauma. They talk in subtitled Korean about how this is the best vacation ever. Well, of course they don't. It's got Sun asking Jin what happened and a frustrated Jin saying that he has no idea what's going on. Essentially. Sun's looking vaguely guilty about being able to speak English, but the way Jin snaps at her in one particular instance makes me wonder if he doesn't in fact suspect that she does speak English.
Charlie goes to blather on to Claire, which is great, as we haven't heard him yammering on for like two whole minutes already. She's concerned that no one's really talking to her, and she wonders if something's going on, so I guess they didn't tell her about the threat against her, which means that Jack's glasnost only goes so far. Charlie talks about what a great time they've had on the island, even going so far as to build a golf course. And how much do I hate hearing about golf in the middle of winter when I can't play? I don't wish to alarm you, but I was in Canadian Tire the other day and I just stood in the golf section for five minutes looking around at all the equipment and figuring out just how long it would be until I can play again, like my blossoming golf-obsession is precisely the sort of trait I would have mocked in someone else just a few years ago, and yet here I am. Anyway, since Claire really doesn't appear to relish the thought of Charlie's nonstop blather, she just asks him point-blank if something's going on, and he says there isn't. And then he stares off into space, which might freak Claire out a little bit, given that she has amnesia and likely doesn't remember how flashback-heavy this show is.