You can definitely send us a screenshot (and even GIFS of Chuck Norris)
You should see icons in the text area where you are typing your reply. It might look like a paperclip if you are on a computer.
Here's how to take a screenshot on your device.
To take a screenshot on your iOS device, just press the home button and the power button together.
To take a screenshot on your Mac, just press Command+Shift+4 then drag which part of the screen you want to take a screenshot of.
To take a screenshot on your Mac for the full screen, just press Command+Shift+3