2Making people agree with you
Nodding your head while asking a question makes the other person more likely to agree with you.
It sounds a little bit rudimentary, but please don’t underestimate the power of this gesture. The explanation of the fact is very logical, as nodding your head is the ultimate sign for agreement and comprehension.
So, when you ask someone: “Don’t you think I’m right regarding this matter?”, double your question with your gesture and nod your head while asking. People are more likely to agree with you.
You can also use this trick if your friend is making a presentation and starts getting lost. Seeing someone in the audience that is nodding their head and smiling will help them to get back their courage.