The absolute best way to see squirrels is to sit in a deer stand with a 30-06. You'll be covered up in the noisy things then.
That's all too true!
Every year when I'm out squirrel hunting I have to REALLY hunt for them. On the other hand every year when I'm out deer hunting I see them EVERYWHERE and hear them all over! The problem of course is I've got too large a caliber gun to shoot squirrel AND I don't want to scare away any deer that might be nearby.
Its almost like the little buggers know when I'm gunning for them and when I'm not!