In order for EasyPoints to start giving points to the customer, you must first enable the "point system" setting.
Once enabled, all orders made in your store will be processed by EasyPoints and your customers will start earning points through purchasing products.
"Stealth Mode" setting allow you to hide the EasyPoints widget or integration assets in your theme. Stealth mode will not stop your customers from earning points but your customers will not be able to see their point balance or use points since the widget and the integration will not be visible to them.