The Community-Level User Profile displays a "mini" version of you and your fellow community members profiles! You'll be able to see all the activity from any specific member easily within the community. To view the community-level profile of your classmates, TA or professor just click on their name on the Community Feed.
To view your own, click the "My Account" menu on the top right corner of the screen then select "Your Profile". On your profile, click the "View Profile" button in the Activity section and you'll be directed to your community profile. If you are already in your community (or on the community feed), just click on your name in the My Community Stats section on the right side of the page to open your profile!