‘Kao’ versus ‘Cow’ and Other Misunderstandings

The new Japanese students have arrived, and with them a chance for me to constantly use my Japanese. However, recently it seems that no matter what I do, everyone seems to find it unwarrantedly funny. Clearly, we have reached that point in friendship where we switch from trying to be as nice as possible to mocking eachother's every error. Unfortunately for me, there are still many.