Click on the "Customer Overview" tab in the home-screen. This would give you different buckets in which yours customers are grouped, based on which you can click on a specific customer which opens up their profile.
You will beable to understand :
Their last spends
Their visits this month
The person who assisted them
Their market share with your brand in comparison to other competing brands in the same category (chart found under "Insights")
Chart analysis of their visits to time spent in the store during those visits
Customer notes and feedback based on their visits
This will help you know and target your customers better and give them the experience they rightfully deserve.