I have one puppy that is shy acting-does not come near strangers or very few people for that matter..the other puppy is out going and jumping on people for attention.
Of my older dogs, I have a barker-that will continue to bark as long as someone who she does not know is in the house, does not make a difference is I close her door or not. If she is out with the person, she still continues to bark, from my lap.
The other three will bark when someone enters the house but will quiet down, especially if I close the door to their room.
I am carefull that my dogs have their own place to go when I have company. While I am a dog lover and do not mind if they are jumping, climbing on me or just running around playing--not all people are like this and I respect their space.
Chis are hard to socialize. I have seem chis in a situation where people are always present and they still can be nippy. And I have seen the wiggly, licking type...let me near them and I will drown them in kisses...