this unit is completely wireless already. turn it on and it will tap into any available unsecure signal
what do you mean by internet stick?
the computer has built-in wireless capability, if you were referring to a wireless usb.
it doesn't have a usb port, so a thumb drive would not work with it, but one of the APPS is for DROPBOX FOR ANDROID, which allows you to put anything up in your secure storage area in cyberspace (hate to say the Cloud, because that is an actual storage site that google promotes).
once you have it in your dropbox, or in the Cloud, you can select individual things and download them to your tablet....use them and save them back to dropbox or the Cloud .... and not use any of your tablet's storage.
No. There is no USB port to plug a stick into.