Office lobby gigs

[jspeer@haverford.edu]

Hi!

Someone (can't remember who) was recently posting about gigs in the lobbies
of office buildings.  I have noticed that busy lobbies are strangely
popular venues for ambient music.

My question is: how would one go about setting up such a gig?  What sort of
person should I aproach?  Also, are such shows generally on a level of
begging for change from passers-by, or can one negotiate a fee from the
proper person?

Thanks for any info!
Jim