My friend, Joelle, wants to start a fun rock-and-roll dance class for her friends. She wants to play great music and just dance with other women. She doesn’t want to go to a fancy health club where ­muscular 20-somethings are all staring and comparing in front of the mirror. She wants to move around and have fun.

“Should I wait until I get more people?” she asked me.

“No!” I said adamantly.

“I have one or two friends who might want to start with me,” she said.

“So start small!” I said. “Start with one friend or two and then you’ll get more and more women.”

“But won’t it be strange to have such a small class?” she asked. “Maybe I should wait until I get more women.”

“You can wait and wait and never get enough women,” I said.

Don’t wait for the perfect condition, the perfect wave. It might not happen.

Make the connection, as Seth Godin writes in his blog. The rest will follow.

Take a little step and you’ll reap big rewards.