How do you find the limits of areas on a chart?

Mxsmanic wrote in
:

I've read that Class B airspaces are not happy to see GA traffic.

From my experience, Class B controllers are happy to service traffic that
behaves professionally, regardless of what part of the FARs they are
operating under. I have personally heard Class B controllers ball out Airline
Pilots for failing to pay proper attention to a call, and for failing to
comply with an instruction in a timely fashion (ie: after three or four
acknowledged requests).

I have also heard them treat pilots in trainer planes with respect and
gratitude.

The controller has a job to do, and he expects the planes in his airspace to
be monitoring his transmissions, and to follow his directions for procedures,
altitudes, and headings in a timely fashion. Anyone who complies is welcomed.
Even pilots who make a mistake are treated well and mildly corrected. But if
a controller has to repeat every instruction 3 or 4 times, he's going to
start getting very annoyed.