As soon as we brought Link home at 9 weeks we would take him outside and say "be quick" as he was peeing. We also took him to a specific spot in the backyard to do his business. For awhile he would not go to the bathroom when we were out on walks either. Then once we were out and he would see home he would try to pull us because he had to go so bad. I don't know what happened but once he got somewhere and we let him sniff around a little and used our "be quick" he started going outside of the yard. Giving the command sure is nice when you have somewhere to be and he needs to go in the crate, we can take him out and use our words and he goes even if it is just a little bit. He will be 5 months on Thursday.