NOTE: Android is highly customizable and may look different depending on your manufacturer. The steps below may vary for different devices.
1) In the bottom right-hand corner, tap the "share" icon.
2) Tap Send a copy.
3) Tap the format that you wish to use for sending the document.
4) Tap the email app with which you wish to send the document.
NOTE: We used Microsoft Outlook, but you may use any email app that you like.
You have attached your Word document to an outgoing email message on your Android device.