How to use emoji on your Mac in nearly any app, and save your favorites for quick use Dec 31, 2020, 05:00 PM facebook Photo by Stephen Lam/Getty Images You can use emoji in nearly any Mac app through the "Emoji & Symbols" menu. To open your Mac's Emoji menu, you can use a keyboard shortcut, or find it by clicking "Menu" at the top of the screen. The Emoji menu will let you insert any emoji, along with a number of other symbols, punctuation marks, and accented letters. Once opened, you can change the size of the emoji, as well as mark your favourites.