Wolfgang startles when addressed, staring at her for a few moments -- it takes that long to process the words. Then his expression does a series of contortions as he glances back at the other end of the bench and tries to decide how to answer. Saying no is not technically true. But Yes it's taken by someone invisible, while true, also sounds insane, and even though he knows perfectly well that people in Baedal take that kind of thing in stride, the fear of being seen as crazy is stronger.

The ghost doesn't seem to be moving. Whether she can't hear Tatiana or she's just so focused on what she's looking at, Wolfgang is not sure. He is very curious if she'd notice if someone sat on her. Would it be mean to let that happen? (Would it also be funny?)

Will Tatiana think he's nuts if he starts talking to someone who isn't there?

"Not really," he settles on instead, with a slight upward inflection as if he's not... exactly sure. That seems like an acceptable compromise. He probably does sound crazy, shit.