Openers

In two of the classes that I am responsible for teaching, I have been using brain teaser openers for the students. When they come into the classroom, they are to get to work on the brain teasers on the board. So far, it has worked pretty well and the students are enjoying them, while I am enjoying them being busy while I can get role and wait for the morning announcements. But, the brain teasers really aren't related to business or keyboarding, which are the topics of the two classes. Does anyone have any ideas of things I can do at the beginning of class that are related to business and keyboarding???