New system for entering Fittleworth Stores!

It can be hard to see how many people are inside the Stores at any one time which makes it tricky to know whether its OK to enter given the rule of a maximum of 3 customers in the shop at any one time. So, to make things easier the Stores have installed a rather snazzy red/green man traffic light system by the front door. Please help each other by looking at it before entering.