hi mate!
there are many places known by its laowais customers, you know, we all try to be in touch with the familiar things (i mean, western faces) so there are many places where foreigners meet and stuff, as Moondog, Salvador, D.T Bar, Fubar,, etc.
If u are into entertainment shows, people so often use to publish here some events..
Western people here are quite connected here, if u dont know someone, for sure some friend of you will.
And about chinese people, in general they are very polite and kind with foreigners, but as everywhere, u will find some cases where people will look at you like "Another foreigner stealing our jobs ..." or stuff like this.. you can imagine.
Have a nice trip !

