Goal: I want to share this photo of Rijksmuseum to my friend on her Gmail ID naomi.rousseau@example.c
Step instructions:
click on the Share icon at the bottom left of the screen
Click on the Gmail icon option 
Type naomi.rousseau@example.com in To bar
Click on the suggested mail id 
Click on the right arrow at top right of the screen
Actions:
action_type: click
action_type: click
action_type: input_text
text: naomi.rousseau@example.com
action_type: click
action_type: click