Someone who is instructed to keep a watchful eye for popo
and intruders, while someone or a group engages in illicit
activity. Whenever a lookout spots popo or intruders they are required to warn others verbally or physically. Lookouts will typically engage in ordinary behavoir, such as pretending to talk on a cell phone or smoke a cigarette to appear to be occupied and allow them to be watchful at the same time.
There may also be another lookout from a distance watching the main lookout in the case that body gesture or hand movements are used as a warning. This method is preferred in a noisy environment where a verbal signal may not be picked up.
Jon, were gonna case this joint, you be the lookout while we take care of business