Two: The first sentence is hello, of course. For example, good morning, examiner. This simple sentence is enough to show your manners.
Three: Get to the point. Don't introduce your name or anything like that. They have all read your resume and they have understood it.
Four: dress, it is best to wear formal professional clothes, don't dress too casually, after all, mobile is also a big company, right?
Five: All you have to say is your understanding of the position you are applying for and your understanding of the mobility.
Remember, remember, simple and clear. Don't waste your time. You only have one minute. If the examiner is interested in you, he will talk to you more, and then your hopes will be great ... good luck.