We have several other families on our block with dogs. One in particular is at the other end of the block, and they have a Chihuahua named Paco. He just turned 4 and he is a bit smaller than Mini. He's also all kinds of cute and, like Mini, loves other dogs.
Mini and I encountered him and his Paw during tonight's walk. Not only was Mini all happy to see Paco, she started to get friskier than I've ever seen her since her arrival. She started bouncing around like a puppy and even did several "play bows". I was floored. It's the first time I've seen her invite another dog to play.
She really is starting to come out of her shell, the longer she's here. :-) I guess the more confident she becomes that she's not going to have another upheaval, and the farther in the past her still-recent huge life changes are, the more her real personality shines through. And even more than before, she is deserving of the nickname "6 lbs. of Happy".