You'll also want to wear sticky socks to prevent your feet from sliding ... to sweat and move when you want: There's a lot of new lingo to learn when you step in the studio.

"I'm just a millennial standing in front of the internet asking for validation that this is how we wear our socks now, please help," she wrote in the text overlay of the video. "D ...

We all have been there—you’ve finished doing laundry and as you’re folding your pile of clothes, you notice that some of your socks are missing their matching counterparts, nowhere to be found.