In the gemini-world there is mainly text. That's fine.
But sometimes, we can utilize some unicode chars to lighten up this grey world.
♊ 🖥 🖳 📱 😼 🇦🇹
But where to find your fitting unicode-char? Fortunately the unicode consortium has put together a nice overview of all emojis: [Full Emoji List.]
But - as always - if you are using emacs, simply do C-x 8 Ret and search for a symbol name.
List.