Sometimes you think you know coroutines, and then after a while, you’re like, “Wait, do I really know coroutines?” Inspired by the O’Reilly book _Programming Android with Kotlin_ and the upcoming new Droidcon eBook _Mastering Kotlin Coroutines: From Basics to Advanced _, this talk strengthens everyday coroutine understanding through playful explorations. You don't have to master coroutines to get started and be productive with coroutines. But when you walk out of this talk, you have deep understanding of coroutine mechanics and what tools can help you debug coroutine behavior. You might be in the beginning stages of learning Kotlin. Or maybe you’ve been using coroutines for a while and want to brush up, or maybe you're a little burned from other talks. Either way, you'll be looking at coroutines a little differently by the end of this session!