A.I.D.A Principle

A ttention - are you unique enough to grab the clients attention.

I nterest- does the product spark enough interest to benefit the client.

D esire- does the client want it bad enough to do anything to have it.

A ction- have you done your job well enough and asked a closing question.

In every sales situation you must evaluate if you have done your job thoroughly and hit all of these points. These are the sales basics that many people get away from. There will always be the latest close and the "new" way to sell but remember just like anything else in life remember the basics. Get really good at the basics and know this principle inside and out and you will be successful.
You have to be closing all the time !