You can choose emojis (listed on http://www.emoji-cheat-sheet.com/) from emacs 😮
Emoji image files are from arvida/emoji-cheat-sheet.com 🐝
Place emacs-emoji-cheat-sheet folder to arbitrary path 📁
(add-to-list 'load-path "/path/to/emacs-emoji-cheat-sheet")
(require 'emoji-cheat-sheet)M-x emoji-cheat-sheet 😫 Press `RET’ on any emoji to copy its code to clipboard.