I just leave, I don’t announce
So i used to as well. Like you aren’t actively participating so you think that noone will notice that you left
Then, out of nowhere, everyone is asking “Why are you leaving? Stay with us”
Pro tip, tell someone who isn’t talking that you are going to “start packing up” or “getting ready to leave” then you can slowly gather your coat/bag, bring your glass to the kitchen, etc. it’s stuff you would have to do anyway.
You inform at least one person, that’s the rule. If they really want to know what happened to u they can find out.
At my work we jokingly dismiss each other, someone will stand up and say to someone else “hey, John, you can go home now” as though they are the boss, and then that person will say to someone else “hey, Jane, you can go home” and so on. Until we are all dismissed for the day.
First I will eat one VERY last cookie.