Most Helpful Girl
if ur using the same email or if a mod spots u.1
Most Helpful Guy
IP address, MAC address, the browser you use, the OS on your computer, the server you're connected to, are all available every time you connect to the GAG server. (Even your HDD size, I think). But analyzing all the stuff your computer sends can take a bit of time. IP numbers are the simplest.
Just try connecting to Facebook from another computer or with another browser: it will send you a pm to verify until it knows you use 2 computers.1