 One thing you hear us talk about a lot here is how important baseline is. Now, if someone's telling you to look for little special signals without developing any kind of baseline, you might be listening to somebody who's got some knowledge, but not actual skill. So just really quick, a baseline is just a set of known behavioral characteristics in a particular environment. And most of the time it's truthful, relaxed environments, but many times all four of us will develop a baseline of stress. How does this person react in a stressful situation?