searching and trying to locate a person?

hey , well some body help me .

i am trying to locate and find a friend of mine in clifton new jersey .

well i meet that friend of mine on a language exchange site ,

but he is no longer using the site , i never asked about his email , because i seldom use it

and he does not use facebook either . now i am trying locate him .

do not tell me google i already did , when everything has failed , i am here to ask

i have tried find a person or locate a person site , but unfortunately i do not know the last name of my friend .

my friend is a polish national who came to usa couple of years back .

he is a high school student and many be he will graduate this year , i am not sure because i do not know the academic calendar .

so ? how can i locate !! Anyone?

i will be obliged to get proper answer .