Swiped on a coworker

So I work in the operating room and we used to work with this PA but since their surgeons left the hospital, I don’t see him anymore. So I haven’t seen him in about a year give or take. So we no longer work together.

I’m on a dating site and a couple months ago I swiped on him and he swiped on me too. I was super nervous and didn’t really know what to say so I jokingly told him that I always swipe right on people I know. There wasn’t much conversation after that LOL.

Recently I reached out to him via text just to ask him a simple work related question. I saw him again on the dating site yesterday and decided to swipe right again and he swiped as well!!

Now I don’t know what to say. 🤦🏼‍♀️ I literally have zero game. Someone helppppp. I want to say something because I would like to see if it would develop into something. Anyone have any ideas for something to start the convo? Preferable something funny?