Task: The presentation looks complete, so I want to share it with maredharris@gmail.com so she may contribute some further suggestions.
Steps:
Click on the presentation 
Click on the three dot icon at the top right of the screen
Click on share & export  option
Click on send a copy
click on ok option
Click on the gmail icon 
click on always icon
Enter maredharris@gmail.com as the recipient's id
click on the suggested email id
click on the send icon