You’re feeling bored with the current Gmail avatar, you can choose a photo other to set as your Gmail picture.
Change your Gmail picture
STEP 2: In the top right, click the gear icon ⚙Settings.
STEP 3: In the “My Picture” section, click Change picture.
STEP 4: Select or upload a new picture.
STEP 5: Select the portion of the photo you want to show. Then click Apply changes.
STEP 2: Next to your picture, tap Edit .
STEP 3: On your picture, tap Edit photo .
STEP 4: Select or upload a photo.
STEP 5: Crop your photo, then tap Done.