I'm new to writing contemporary books, so here's hoping this isn't a horribly naive question. Does anyone know if using emojis is acceptable or even legal? They would specifically be used in text messages between the characters, who are in their early to mid twenties. It's a romance, so it's a bit flirty and lighthearted, so tonally it would be appropriate. Researching online suggests that it's legal but can risk dating the book, which is a valid concern, but I'm more worried about keeping in line with other books and not getting sued.