Uploading an avatar is easy - you can add one to your profile by following the steps below.
On the left sidebar, click 'My Profile'. You'll see a circle above your username: this is where your avatar will go. Click 'Edit Profile Pic'.
Click 'Browse' when the dialogue box pops up.
Locate the picture you want to use— make sure it's a favorite of yours that will get you noticed! A clear shot of your face is best. Click 'open' once you have your profile picture selected.
You'll be able to crop your photo once it's uploaded but before you publish it. When you're done cropping your photo, click 'Save Changes'.
Congrats! You now have an awesome avatar for your profile page.