I'm not a teacher yet, but as someone who was quite shy in school, I would say try and avoid situations where they're talking and everyone else in the classroom is listening. Either get everyone to say particular phrases together as a group, or set everyone off on a speaking exercise, and then just wonder around the classroom and listen to each couple in turn. I think that shy students will be far less self-conscious if they don't think everyone's listening to them. But having said that, I know it can be difficult to get people to do things when they're not into it, even if you're not watching them like a hawk.
- For Teachers