HELP!!! Locked out of Samsung Galaxy Exhibit and need phone numbers

[AC Question]

Hello, i did a bad thing -_- bummed my buddys phone and he has that pattern crap on it and i thought i rmb the password buuut after i failed so many times it went away and now i get the too many pattern attempts abd asking for either the PiN or Google info annnnnd well he knows none of them and now hes pissed at me -_- he just needs the phone numbers, is there anyway for me to get them?

It's a Samsung Galaxy Exhibit ‑ 4 GB ‑ T‑Mobile ‑ GSM PLEASE HELP

 

[the tall guy]

Try using Android Device Manager

 

[B. Diddy]

Welcome to Android Central! How does your friend not know his own Google account and password? Are you sure this is his phone?