One of those things is responding to the majority of the text I receive with "🤣." I don't know when or how it happened but It's a normal part of my life now.
A few weeks ago I was texting with someone in their early twenties and their response to a text I expected them to find funny was "💀." I had no clue what it meant. Apparently, it means "I'm dead" or "I am laughing to death."