"How curious. That sounds exactly like what someone about to open them would say."

Is Alice serious about that as she says it? Is she just teasing? Who knows, her tone makes it very hard to determine if she's still mad at them or not. (To be fair, Alice is paranoid enough that she really wouldn't put it past any stranger to open the things other people bought, no matter whether it's just to be nosy or steal something.)

"You're not exactly making a great first impression on your first day here, are you?" Now she's bluffing a little, since she doesn't know if it's truly V's first day here. But she's just banking on the fact that she doesn't recognize them being due to them being new, rather than her own lack of indulging in social activities.