Well, when I'm wandering on my own, I take very few breaks but I'm a little more merciful with company. xD In such a case, we find a cozy corner to sit down and just let our minds wander while people/cosplay watching. (This is very helpful if you get easily overwhelmed with all the activity going on and just need to take a step back and play the observer for a change.) Now, if it was just me alone, I'd sometimes head back to my hotel room to take a short breather: drink, snack, take off my wig, etc. before getting ready to head out again. Any other down times of mine would be lunch and dinner. :3