How to contact her? Just create an other nick, put in the
profile info like that you are a friench guy who came to
singapore.
Then start a thread which says that you are a french guy who is
interested in making friendship with local girls (becasue you
arrived just recently and don't know anyone), also would like
someone to show you singapore as you feel lost here, and you can
mention that you can give french classes.
Good luck! 
