Profile photo:
Find your 3rd person/First person key and your screenshot key
Their normally F2 and F5
Then press your 3rd person key, then your screenshot key when your ready
After that, find your screenshot folder (%appdata% for windows, idk about Mac)
Make a Gavatar account, if you didn't already.
Upload your screenshot you just took. Wait for it to update on your Gravatar.
Then go to your profile page and tap your avatar (looks like a head if you haven't changed it)
Then select Gravatar, put in your email that you used to sign up on Gravatar.
Tap test, and your avatar should update to whatever photo is connected to your Gravatar.