They respond to similar things, too. They both get excited and run to the door when you say "outside" or "W-A-L-K". We play the same games with Gavin that we played with Jack when we first brought him home. Those include "hide and seek", "peek a boo" and a little game we play called "where's momma/daddy".
And, sometimes they act the same. They will both put anything in their mouths and try to eat it (leaves being a favorite), they both carry socks around in there mouths, and they both like to "fetch" balls, just to name a few things.
Some things are different. Jack is potty trained, Gavin is not. Gavin likes to take a bath. Jack licks his own butt.
I think Jack turned out really well...best dog we EVER had! So, if Gavin turns out like Jack, I think we'll be ok...unless Gavin starts to lick his butt. Then, we have a problem!