The interface had been up for some time now and Sever had been very much aware. It had been evaluating the possible outcomes of synchronizing and how much resources would have to be dedicated in doing so. Now, he had come to terms with the expenditure.
At first there was a simple and short auditory signal - which could simply be written off as a low chime - followed shortly by the materialization of an untextured scalpel nearby. Considering he did not know the other's capacities, and repeating itself was not acceptable, his message was converted to sound as well as projected text-written data - orthographically, even in 3D space.
Then Sever finally spoke - and, should humans try to read it, his message probably looked like this:
"Amused. Did not expect resources be spent in irrelevant three-dimensional leisure imagery."
There was a short moment during which Empathy's form was silently judged.
"Redacting. Unsurprised. Will suggest better resource allotment on future iterations."