Here are things I would do if I had such a day.
1.) Abruptly stop speaking mid-sentence, then leave.
2.) Abruptly leave while someone else is mid-sentence.
3.) Make cupcakes.
4.) Hum comfortably to Theory of a Deadman while playing sudoku on my phone outside.
It's not that I don't do these things already. I just want legitimization and a party, really. A very strange party, with very little socialization but a high proportion of sugar and default wireless internet.
Actually, this wouldn't be strange so much as ideal.