Hi, I'm Talia Winters, licensed commercial telepath, rating P5. How can I help you? Well, my job is to mediate in business transactions. Either party, or both can engage me, to determine if the intentions of the other side are strictly honest. I am obliged to tell both parties that I can scan surface thoughts and feelings. I can sense whether someone is hiding something, being economical with the truth, or telling an outright lie.
How does the gift work? Well, the first thing a telepath has to learn is how to block out extraneous thoughts and background noise. Most people broadcast surface thoughts, especially strong emotions, without realising it. This can be quite uncomfortable for a telepath, until he or she learns how to put blocks in place. Then, you can start focusing on individual thoughts. It's usually best to have a direct line of sight with your subject.
You can sense surface thoughts at a distance. For a deeper scan, we use our hands, moving them near or around the subject's head. For some reason, human fingertips are sensitive to psi fields. That's why we wear the gloves, as a kind of etiquette, to demonstrate that we're not intruding on other people's thoughts without their permission.