How to Signal to a Hot Tub

There's nothing worse than seeing one person and an eight person hot tub while eight people are waiting to get in. Maybe you could take a hot tub in a full business suit because that says three, like I'm looking to engage with other young professionals. What is a hot tub, but a hot water filled subway car? You just got to treat it like a subway where it's like, I'm not going to engage you. Just getting this hot water together."