There is a truism in the Refinery29 office: If you want to get a response to an email, include a GIF. While not every office is GIF-sending-friendly, including one can be a great way to brighten a boring email or better express yourself — after all, there's a limit to how many exclamation points you should include.
But not every GIF is work-friendly. I once sent this GIF to my coworkers (best described as Obama-as-Beyoncé-on-a-pizza-in-space?) and just received blank stares. So don't be like me — next time you want to share a GIF with a colleague, go with one that's proven to work.
Here are 20 tried-and-true GIFs that have seen their fair share of Refinery29 inboxes.