I don’t have a dog myself because my current building doesn’t allow them, but my family upstate has had a dog in the house for the last 21 years. Our first was a black lab we got at 9 weeks old until she passed at 15. Our second is a shih tzu we rescued from a local shelter at an estimated 2 years old who is now 6. With these two pups, I've had a range of behavior experience. - Our black lab was very hyper almost her whole life until maybe 13 or 14. She jumped on every visitor because she had too much love to give and she pulled on her leash during walks for the same reason. So I know how to deal with overly excited pups very well. - Our shih tzu has been the complete opposite. He's very low maintenance around the house with a protective bark or two when a visitor first arrives, but after that he'll make even the most cautious person of dogs love him. The only exception is when he's out and about and encounters a big dog. Then he goes into aggression mode and barks/pulls on the leash a lot. So I also am very aware of this potential interaction and how to de-escalate the situation. I really love every dog I see on the street and can't wait to spend a little time with your pup to give him/her some love while you're away!