Step 1: Click the “Settings” menu in the top right corner
Step 2: In the new menu that appears click “Profile”
Step 3: Click “Change image” near the center of the screen
Step 4: Click “Browse…” in the new screen that displays
Step 5: Double click the image file containing your new profile picture
Step 6: Click the “Save” button near the bottom of the page
Finish: You’re done changing your profile picture on Twitter.