I use this with Business Classes as well as in our Senior English classes and the end of the semester. I suppose it be useful if you have a careers class for students going out in the job market or for interviews. This always sparks discussion and many questions, especially when it delves into cultural differences.
You only make a first impression once. Make it a good one!
I pair this off with a presentation on the proper way to shake hands and introduce yourself in a mature, positive, and professional manner.