9 No smile
When you first meet someone, a smile, accompanied by a friendly handshake, seems to be the norm, correct? There’s a reason why we smile when we meet someone new—it lets the other person know that we’re genuinely pleased to meet them. In fact, according to e-commerce entrepreneur Tom Popomaronis, a smile triggers mirror neurons in the other person’s brain that makes them want to mimic the smiler’s actions and smile as well.
