Well, you can't very well hide from the conversation. So it's time to act as if...I would recommend you act as if you are in charge and you know you are going to be fine no matter what happens.
Calm down and understand you owe him no answers today or tomorrow. Find out what he wants to talk about, get his information on whatever it is and say nothing. Tell him, "I understand what you are saying and I need to think."
And really, you really don't know what he's going to talk about or say, so stay calm.
