Like some of the other posters, I don't mind camera talk as long as it isn't interfering w/something else I'm trying to do, like actually taking photos, buying groceries, or having a personal conversation w/friends.
As far as attracting attention w/old & old-looking cameras, I will quote what I wrote in this thread (
http://www.rangefinderforum.com/forums/showpost.php?p=1860527&postcount=59):
In my experience, Leicas (& film cameras in general), mostly attract attention from middle-aged to elderly men. I've had guys literally stare for several minutes before working up the courage to engage in conversation. Since I carry my cameras on a strap "bandolier" style, this often results in them staring @ my chest. I find this phenomenon so predictable, & creepy, that I joke that I now know what large-breasted women feel like. Yo, eyes up here!
I was down in Miami to check out Art Basel & mentioned this to some non-photographer friends during drinks. They laughed, but thought I was exaggerating. Later on, though, as were all standing on the street waiting for the valet to bring their car up, 3 middle-aged European (German, I think) guys walking by suddenly stopped in their tracks, stared @ my Leica & talked amongst themselves for a good 30 seconds, & then 1 of them asked "Is that an M9?"
I'm putting this out there since this could be useful information for straight gals & gay dudes looking for a photo sugar daddy.
I think if you're trying to attract the ladies, you would be better off carrying any Polaroid or Fuji instant camera or some type of toy camera (Holga, Diana, Lomo, etc.).
I do get the "Where do you buy film nowadays?" question a lot, but that's mostly from people old enough to remember being able to buy it at the drugstore, etc.
And while I have encountered my share of idiots & douchebags like the situation recounted by I Love Film, gear talk has also led to great conversations & friendships w/some of the best photographers I've had the privilege to meet.