Hi! I think it's the cutest thing when they squat for you....I always pet them when they do that. Usually, like others have mentioned, it's a good sign that eggs will be coming rather quickly.....like maybe in the next week or sooner! Some of the heavier breeds take a bit longer than 20 weeks to mature and lay those first eggs.
Oh, first eggs are awesome! I always enjoy checking the nest boxes for eggs, it's like getting a Christmas present everytime there's an egg there! LOVE IT!
Good luck with the eggs!
Sharon