Task: My friend needs help in finance. Share Month finance .docx to my friend mail id rick.weinstein@dayrep.com from gmail.
Steps:
Click on the three dots next to Month finance .docx
Click on the Share 
Type rick.weinstein@dayrep.com
Click on the Send icon at the top right of the screen
Click on the Share at the pop up window
Click on the Share at the pop up window