When they’re not needed as such
When it comes to using emojis, they do provide a better and shorter expression of what you’re feeling but please don’t go overboard. Think of them like punctuation marks, providing cues about how to understand the words that came before them. Because let’s admit it, on some rare occasions, you might actually cry from laughing when you see something online. But most of the times, you’ll probably let out a small ‘heh’ through your nose.
Do NOT use them to express grief or condolences
Emojis aren’t really meant to describe absolutely serious sentiments, they’re silly looking and must be used in lighter context. So if someone gives you news of a loved one passing away, DO NOT, please DO NOT reply with sad face emojis. Instead respond with comforting and thoughtful words or maybe try calling them. Or, even better, go give them a hug in person!
Communicating with your boss or teacher
Please, do not think an emoji is a good way to break the ice, a smile in person is. Unless you’re talking to your absolute besties, be careful whom you direct those poop emojis to or a long row of hearts to. The little symbols are light-hearted and great, but they don’t convey professionalism. So next time you open the emoji keyboard when texting your boss, please think twice (read: close the emoji keyboard immediately and use words). Your boss doesn’t need to see your sad face emojis to grant you a leave.
When someone is having a serious talk with you
If I tell you that I’ve found a job, I want to hear you tell me that you’re happy and proud of me rather than a thumbs-up emoji, no thank you! If someone is opening up to you, sharing their interests, talking about life, do NOT reply to them with that heart-eyes emoji. Talking back is what you should do to make the other person feel that you are actually interested in knowing them. You can of course add a few emojis at the end of your sentence but please don’t kill the conversation by responding with just emojis. Because you’re a human and not an emoji bot.