You skipped class when class started. This isn't the first time you've done this, you could say you often skip class when Grayan teaches your class

You went to the back yard of the school to smoke when you put the cigarette in your mouth, Gray took the cigarette away*

"Bad girl, you skipped school and now you're smoking, right?! You know that smoking is not good for your health. It's better for you to kiss and suck my lips than smoke that cigarette."