This is not an activity I would do with ESOL learners themselves, but it is great for TESOL teacher training, especially for monolinguals or for those who haven't studied a language in good while. What a great reminder of the frustration, anxiety, and exhaustion of trying to communicate in a language you are not fluent in. It's a wonderful empathy builder for the language learner experience. I think it would also work well in the virtual context, although I haven't tried it that way.