People size you up in just 3 seconds - here's how to make a brilliant first impression

The first time someone meets you, it takes them about three seconds to determine whether they like you or want to do business with you in the future, said Jean Baur, a career coach and author of the book "The Essential Job Interview Handbook."

This is crucial when it comes to meetings where that first impression makes all the difference, such as a job interview or client presentation. From your posture to the jewelry you wear, key details can have a significant impact on how you're perceived.

Here are a few ways to make a brilliant first impression in a flash.

This is an update of an article originally written by Vivian Giang.