My other pups who are now gone had good communicating skills. My Bailey here is now 7 months and she is developing.
She will sit in front of the kitchen counter when its around the time frame for breakfast or dinner and just look up.
I can safely say she is house broken but during the day or some odd time, if she has to go, she will start giving you that puppy biting nibble thing on your hand.
Crude but it's her way and it works.