I can only assume 10/11 somehow makes "uinku" as a goroawase pun, but no idea how that works.
Aw, I was in the middle of translating it. It's not gorowase this time! I did my best with unicode to make it work in the TL, but I don't know if it'll show for everybody...
blinkyblinkWink DayOctober 11thWhen you put 10 and 11 next to each other, you get this - ⨪=! See! It looks like a wink! When you wake up, if you think of the person you like and wink away, your thoughts will reach out to them, maybe...