Hello Xbox Live, so how do you become a Xbox Live Ambassador? :)
just click on the link and apply!
Hello H A J I M E,
Please note that in order to qualify to become an Ambassador, within the last year, you cannot of had any Xbox Live Enforcement action taken against your account.
If you have any more questions regarding the Xbox Live Ambassador please check here for some help:
If you have any more questions that can't be answered there please feel free to ask back on the forums here.
Good luck with your application :)