Ask HN: How to behave during casual VC pitches? Any non on-stage examples?

Hi, I understand the pitch deck - 10 slides etc. I feel however that when I pitch it makes an impression of a one-man stand-up show (not comedy hopefully ha). That's obviously because presentation is rehearsed over and over 1000 times. All the examples are about people pitching on-stage. That's one thing. I wonder if there is a good example of people pitching casually in a more office room type scenario where one does not go into me VS world mode.