There is a difference between knowing something will happen and being used to it. Sam has been startled by Inej before and he will be startled by her again, but this time he's at least able to keep it a relatively small jump, a quick intake of air and then he exhales again.

He's got a beer in hand and just finished eating a bite of sausage when she appears, so it takes him a moment to be able to answer her question. "Geralt came by- guessing you saw him? He had something he wanted to run by me."

There is very little in his tone that makes him sound like it's a secret, or that there's anything particularly important about it. Instead, Sam just shrugs, takes another drink, settles into one of the rocking chairs. "You have fun snooping around?" He means in the house, his Horizon. He can't remember if she's been around here much before, but he does assume she's been curious enough to take her looks.