[She sits in silence, too - and while normally she'd take the time to fill up the silence with chatting, small talk or otherwise, she really isn't in the mood now. And, at least, she knows that Sherlock isn't one for small talk and unnecessary talking]
[It's an odd match-up, but she's not opposed to it. Although when she looks to where he's looking and sees the baby things, she does tear up a little.]