Who doesn't want tips on negotiating, right? How about from the FBI? Certainly you'd think they know a lot about negotiating.

Turns out, what they have learned can be applied to business situations. It's a matter of looking for key words that indicate the strength of the other parties position. Things like "normally" or "typically," for example, may be signaling that there is more on the table than you thought.

The key is listening to those verbal queues as you carry out the negotiation. These tips can help you to determine if it's time to close or walk.