I recently started using emoji/emoticon in the titles of my Youtube videos, just to categorize certain videos from each other having certain emoji to show the differences, but also to decorate the titles to stand out more from the rest and also prepare for special holiday decorations.

To use these, you just select and copy (with Command + V on Mac / Control + V on Windows) the emoji/emoticon and paste it in the title and text of your Youtube videos.

Smiley

Animal and Nature

Food and drinks

Activity and Sports

Travel and Nature

Objects

Symbols

                                                                                                                                                        ↔️                     ©️ ®️ ™️                                     ♠️ ♣️ ♥️ ♦️                             

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