How youinteractwithNPCsandothersin the Worldof Warcraftwilleffectyourreputation. Your reputation in turn determines how otherstreatyou. This is displayedin the reputationTAB.
This resource highlights guards and their patrol paths, differentiates your mark from other enemies, lets you know which items you can interactwith, and gives you the ability to sneak past NPCs.