How to use Citi Bike without paying?

Excuse me, I'm wondering if you could clarify something for me. The paragraph mentions "How to use Citi Bike without paying?" but I'm a bit confused as Citi Bike is a bike-sharing system that typically requires payment for use. Could you elaborate on any legitimate methods or circumstances where one might be able to utilize Citi Bike without incurring any costs? It seems like a common question with potential misconceptions, so I'd appreciate any clarity you can provide.