There are a few ways to send a message on Android, but the most common is to use the messaging app WhatsApp. To send a WhatsApp message, you need to create an account and type in your message. Then, you can select the recipient and hit send. To stop receiving messages from someone on Android, you can use the messaging app’s “unsend” function. To use this function, first open the messaging app and sign in. Then, open the “message” tab and click on the “unsend” button.