To access your Lead Scoring Feature, click on Contacts from the left menu and select Lead Scoring from the top.

You can add new score rules by clicking on Add Score. Once you have completed your set of scores, the system will start listing leads on this page (under the Leads tab).

You can search leads,  filter them  by type (contacts vs anonymous), status or by assigned users. You can also and click on a record to view their profile timeline. If you are working in a team environment you can assign leads to different team members from the Assign To option.

To access your Lead Scoring general settings, you can click on the settings icon in the top right.

The popup will let you configure the maximum score leads can reach as well as enable a notification alert once a lead has reached certain score that you specify.