Q. adding a picture from an Android phone to Twitter profile page.

If you have Twitter App on your smartphone.

• On your device go to your Twitter account click on the Me button at the top.
• Then look for the little gear and tap on it. tap Edit Profile which goes into your Twitter setting.
• Tap on your current image and you will see the option to add existing photo. Tap that option and it will open your photo gallery on your device.
• Choose your image and then at the bottom tap Save to make that image your Twitter profile image.

It usually take between 5-10 minutes before your existing Tweets convert to your new profile pictures.