Short answer: Open My Photos, pick an image, then set it as your avatar.
- ๐ค Click Me in the top navigation.
- ๐ผ๏ธ Select My Photos.
- ๐ Open the photo you want.
- โฎ Click the three dots (or Actions).
- โ Choose Set as avatar.
๐ก Tip: Use a clear, well-lit photo where your face is centered.