Another good tip is to use Common sense! Don't walk through Corn Stalks,etc.. as they would be everywhere there. I do not know what Toronto is like, but here in Grimsby they are everywhere and not only on the escarpment. Be aware of your surroundings.
Note: they are most often sitting still while on humans which makes them easier to get off. Also, check your pets.... after birding in a tick area I have found them in my house, on my pets and even in my bedroom which was not very nice to see
I am clearly exaggerating by using corn stalks as an example, but you know what I mean.