Alistair didn't feel particularly nervous about the situation, but he didn't want to be here. It went against the behind-the-scenes persona he'd adopted and adapted and lived in for the entirety of his adult life. Here he was, part of a dramatic entrance.
He knew that Tereska wasn't going on his cue, but he gestured for her to go ahead, looking not especially convinced that this was going to be prudent in the least.