Hi there
it's useful to find topics that the students are interested in, e.g sports, movies, music, their home town etc. It is true that people speak more freely when it's a subject close to their heart or something they have knowledge of.
There are some resources on the internet that will give you some starters
http://iteslj.org/questions
This website has plenty of conversation topics, but you will need to develop the lesson plan , e,g think about vocabulary you want to pre-teach.
http://www.compellingconversations.com
The second link is handy as the lessons are developed for you. There are some sample lessons for you to try out, after that you have to buy the book or pdf . Maybe your school would purchase it for you?
Deborah
