Don’t overthink it. Just follow the vibe of the chat. If your friend is ranting about their boss, drop a “TM” to say they’re being too much. Watch them laugh or get mildly offended—either outcome is funny.
If you need to share a long story or a password, send “TM” to suggest moving to text. It’s polite and efficient. You’ll look like a digital diplomat.
One golden rule: Never use “TM” if the conversation is already happening over text. That’s confusing chaos. Your friend will think you’re having a stroke.