Retired FBI agent on how to make yourself more likeable

We could all use a little help learning how to be more likeable!

Whether you're on a sales call, first date or a job interview, a new book teaches you how to turn strangers into friends.

It's called "The Like Switch: Strategies to Influence, Attract and Win People Over."

It is written by Dr. John Schafer, who is a retired FBI special agent and associate professor at Western Illinois University.

Check out his interview in the player above.