Last week, I sat in the same seat many of my clients sit in: the one facing a VC. I had a couple of meetings in the valley to test initial appetite for my “PowerPoint killer” web app.
The body language in these meetings was very interesting. In all these meetings you could clearly see when people where excited, agree with you, do not agree with you, listen to you, are not listening to you because they are thinking about something else (probably the next question), already got what you want to say.
Read the signals and use them to steer the conversation in your meeting. But this might be hard to do in real time. The big use of this feedback will be your next VC meeting.