To type an em dash, the method depends on the operating system:

• On a Mac, press Option + Shift + Hyphen (-) simultaneously to create an em dash.
• On Windows, if you have a numeric keypad, hold down the Alt key and type 0151 on the numeric keypad.
• In Microsoft Word on Windows, typing two hyphens between words (like this: word--word) will automatically convert to an em dash.
• Alternatively on Windows, you can press Windows + period (.) to open the emoji and symbol picker and find the em dash there.

These methods provide the easiest ways to type an em dash on different systems without copying and pasting.