I had the same problem! You know what I did? I set up flyers and I made a post up on my Facebook that I was having the class and that did help. I had 5 people tell me they would be there for sure, but only 1 person out of those 5 came! So, I recruited my boyfriend, my little sister (who loves FLOW) and a couple of ladys off the floor. That is fun, 10 mins before class looking for 2 people to complete your 5 minimum and HOPE that they show up!
I would love to help you. If you tell me the day, the time, the location, I will make u a poster u can post up, and mayeb that will help you get more people. Other than that, look to the people close to you. Even if they cant go all out, as long as they seem like they are understanding you, no problem!
But I would be more than happy to help you. Just send me that info and I will have in 1 day!