You will see the Perk icon in your browser bar change colors at times, here is what the colors dictate:
Green:You have activated a shopping session at one of our partner stores. If you complete a purchase, you will receive Perk Points for every dollar you spend!
Yellow: You are visiting a Perk partner store where a purchase will award you with points. Your shopping session is not currently on, so you will need to click the button to turn the icon Green.
Gray: You are using a website that you’re not able to earn Points on.