My guest lesson went reasonably well. One thing that kind of irritates me is that Japanese teachers have really low expectations for their students when it comes to English. (I don't know if they say similar things about other subjects.) As I was walking to the classroom, the team teacher said, "The students don't like...they hate English, so if they can just have a good time with you, that's fine."
I started off with the introduction activity. I wrote ten true/false statements about myself on the board. The students, broken up into teams, had to try to guess whether each statement was true or false. I started with the first team, reading the first statement and asking them "true" or "false," accompanying each word with the Japanese hand gesture (a circle for true, an X for false). I was standing right in front of the students, so I could hear one of them in the group explaining to the others what they were supposed to do. As they pondered, the team teacher spoke up, "They don't know what to do, so I should tell them in Japanese." Way to trust in their abilities. ^_^;
I just urged them to decide on an answer, repeating "true" or "false" with hand gestures, and they finally agreed on a response. Once I wrote their answer on the board, the rest of the class could clearly tell what was expected of them, and soon they were all enthusiastically yelling out "true" or "false." I find that it's really common for Japanese teachers to want to translate things immediately, thinking the English is "too hard" for the students, but I also find that most of the time the students can figure things out for themselves if given little hints like hand gestures...and if it's clear they're not going to be spoon-fed the answer in Japanese.
After school, several students actually showed up for English club for a change. They used the opportunity to beg me to say something in Japanese "because it's a shame you went to all the trouble to learn it yet we never hear you use it." They didn't stop at that, however; they wanted to get me to say something in the local dialect, Kansai-ben.
Student A: Say wakarahen ("I don't know").
Student B: Say wakarahen wa.
<students lay the accent on thick>
Student A: Say wakaraheeen wa.
Student B: Say wakarrrrahen wa.
Me: <convulses with laughter>
They wanted to know what accent I picked up with my Japanese and asked where I learned it. I told them I learned it in Niigata, but that I only learned to read there, not to speak. I never spoke more than a couple words at a time until I went to JCMU last year.