How to take a screenshot on a Windows PC:
- Click Control-Print Screen
- Click into your email and then click Control-V to paste the image into the email
How to take a screenshot on an Apple Mac:
- Press Command-Shift-4.
- Move the crosshair pointer to where you want to start the screenshot.
- Drag to select an area.
- When you've selected the area you want, release your mouse or trackpad button.
- Find the screenshot as a .png file on your desktop.