I really seem to have a problem finding places to train that are private enough. 
  Maybe i'm embarrased or something, or maybe i just don't want to answer questions... but i have a hard time when people are walking by and stuff.   anybody identify?
   so usually i just practace WAY up at the top of this park where nobody goes.  There is only a picnic table and some good rocks.  at least my kongs are improving   

it all depends who is watching.
  i.e. i was running at a mall and I was sprinting down a side walk and turning heads then a i got to a wall climbed guy in the parking lot almost stopped his truck and just kinda' looked confused. then i kept going a nd got to an area outside were a store had put up an eating area outside so i semi pop vaulted the fence and kept going i was not interupting or any thing but i just kept running but they must have been thinking what was that?
 so unless they r cops or people i will see again i don't care too much.

I as well do alot of training privately. A long time ago i made a transition to doing parkour mainly in nature. It's much more private. Noone to say anything. And just as fun. (more in my opinion). I seriously advise you try going out into some woods (or whatever natural landscpae you have around you) And try running. Trust me, it's fun.

Yeah I go to a small university where you see a lot of the same faces every day so it makes me feel more awkward training alone.  When I go out with someone else it completely diminishes my apprehension but when I go train by myself I often go at night to avoid people and university police.  Although sometimes I scare the crap out of people walking around campus at night so it's kind of a toss up.