We have had a crew of about 10 guys digging a huge trench between our house and the one next door for new drain pipes. I introduced Luke to the first few so they would know he's a nice guy. Since then he has been on his own to deal with them. He never barks at them. I have watched as, each day, they go over to him and pet him and talk to him. They all know his name now. I heard one guy introduce him to the city engineer and he said "He's only a year old."
Today I think he became site supervisor. He seems to like his new job.