I am an Australian living in Japan and I just started teaching two parents in their home (they have a three-year old whom I don't teach). In their first lesson, I taught them how to play Scrabble - they had never seen it before, they enjoyed playing it but it did cause long periods of silence as they considered what word to strategically play. I don't want them to think "I enjoy playing this scrabble game with the teacher but I don't think it has any conversational English practice."
How could I encourage more conversational English (and written)? I thought that they could make words with their tiles and create a sentence using each word to prove that they understand or make a possible word and guess how to pronounce it and I will tell them if it exists.