I went ahead and started a new thread so other people with similar questions could check out your response.
Is the pocket chart for practice cards posted in a place that is visible to the students? One of the slides from the webinar showed it right beneath the scoreboard, but I didn't know if that was just to get everything on one page for your presentation.
Do you ever say anything when you put a white card in a student's pocket? Juana is talking without raising her hand. Do I just put a card in her pocket and keep teaching? Do I say, "Juana, you're breaking rule 2"? Do I call out "Rule 2" so the class (or just Juana) repeat(s) the rule out loud?
How do you respond when Juana complains about the white card? I envision many of my students complaining under their breath or louder - "That's not fair", "I wasn't talking", etc, etc. I don't want to get into a power struggle, but I feel a little hesitant to just ignore it.
I probably have more questions, but those are all I remember right now.