North walks over to the other side of the car toward the human.
"Hello sir. My name is North. I spoke to your travelling companions earlier, and I was interested to meet one who treats two of my kind so well. I want to make something clear to you: you are giving these two a purpose, and I assume are paying them for their efforts and time spent in your service. I appreciate this and would do nothing to interfere in your, or their business. You shouldn't take what I am about to say to them as such interference."
North then turns to the two warforged and speaks.
"I see that you are content with this man you call "master." I know you desire structure and purpose now that the war is over. If ever you wish to find a place where you can set your own purpose, if ever you wish to find a place where you can be a part of a new structured community, look for us or our friends in Breland, southeast of Sharn. You will be among friends and you will find purpose with us. This is an invitation to come when you have finished your service with this one."
North gestures toward the man in the car with his hand, and then bows briefly at the waste.
"Excuse the interruption sir, and thank you for treating these two as well as you do. It would be very unfortunate for us, to see a man who takes advantage of two of our kind. It is good to see your kindness."
North continues to his side of the car.
"He seems to treat them with...if not kindness, then at least some level of respect. Perhaps, in time those two will join us."