It’s so easy once you know the trick!
All you have to do is hold down the control + command (⌘) keys and then hit the spacebar!
Select the Emoji category from the list on the far left side of the Characters window. Then select the type of Emoji you’d like to “type” – eg. Smiley’s & People, Animals & Nature etc. Now, locate the Emoji you use and select it by clicking on it once. Finally, double click on the emoji that you want to use from the Font Variation section (bottom right corner of the Characters window).
This will place the Emoji wherever your cursor is currently focused.
Each subsequent time you open the Characters window to enter emojis, you won’t need to navigate to the Emoji category – it picks up where you left off the last time.
You can also make it faster to insert Emoji’s into your text by creating a “Favorite” list of the most common Emoji’s you use. Simply select the Emoji you want to ‘favorite’ and click the Add to Favorites button.
Now instead of selecting the Emoji ‘keyboard’ – just select Favorites!