Great question! You can follow the steps below to accomplish this:
If you aren’t already signed in, you’ll need to sign into your forums account by clicking here: Log In
At the top of your screen, you should see a black bar. In the upper right corner, it says “Howdy, Joy” (or just a small picture, if you’re on a smartphone).
Hover over “Howdy, Joy” and you’ll see a new menu appear below it.
Click on “Edit my Profile” in this new menu.
In the new page that opens, look for 2 blue bars containing links. Click on “Change Profile Picture”
Follow the instructions on screen to upload your photo.