I find this one sign is often overlooked by people, yet it will tell you right away if they are in or out.
I can’t tell you how many meetings I have been in where either the executive or the buyer gave this sign and the person presenting just kept going.
The reason you miss the sign is you are too busy focusing on completely your presentation.
Your brain predetermined where and when they would give you the yes.
So in the future when you see this sign, I want you to stop and engage them. Ask them a question or get them to share what they like about what they hearing.
So, when you see the person lean forward (and yes you can see it in WebEx and Zoom as well), then engage them. You just got a yes!