In this Forbes article, the author details “21 Critical Principles of Persuasion”. It’s a great detailed list, and here are five from the list that work for me.

Reciprocity Compels – When I do something for you, you feel compelled to do something for me

When you find ways to add value to people’s lives, they will know you’re on their side, as opposed to being out to close a deal, which is the energy most salespeople radiate.

Persistence Pays – The person who is willing to keep asking for what they want, and keeps demonstrating value, is ultimately the most persuasive

Most salespeople give up after 2 or 3 attempts of reaching out. But if you’re absolutely certain your product or service will positively benefit them, then keep at it and they will recognize the value.

Don’t Assume – Don’t ever assume what someone needs, always offer your value

For example, don’t assume that the lack of a call back or email reply means that the prospect doesn’t want or need your product.

Behavioral Flexibility – It’s the person with the most flexibility, not necessarily the most power, who’s in control

Also having control over your emotions and keeping your ego in check helps you enormously.

Learn to Transfer Energy – Some people drain us of our energy, while others infuse us with it

This is a good one. If you can make people feel invigorated and enthusiastic, people will enjoy your company. People may forget what you say, but they’ll remember how you made them feel.

You can read the rest of the list here.