1. Sharing Files
1.6. Sharing the Document
Click in the checkbox next to the document you wish to share. Then select the Share button near the top of the screen. 
A large box with Share options will open next. You will need to do several things:
1. If you want only the people you email to be able to view your document, then enter only the email addresses of the people you wish to invite. You do not need to change your access from Private.
2. If you want the people you email to be able to edit your document, leave the Can Edit option that appears just to the right of the emails. If you don't want them to edit, you will need to change this option.
3. Add any message you may wish to go in the email that will contain the link to your document.
4. Click the Share and save button to send
Your Sharing settings box will now show the names and emails of the people with whom you have shared the document.
5. Click Done