There are people who follow you back and there are people who follow you. You can access your Fans by going to your Audience menu, then clicking on the “Fans” tab and selecting the Twitter profile you want.
These are people who follow you without you following them. They’re...your fans. These are the people that could be interested in what you have to say or sell (or both!) or want you to follow them back.
You can use this information to follow back the people who started following you or engage in conversations to transform them into potential customers. Use the filters to sort the fans to match your target audience.