Mika knew no signs when she arrived at Geffen's home, and seemed frustrated that she wasn't able to communicate. She is learning very quickly.
Some of the signs that Geffen has taught Mika include sit, shake, stay and lie down. She's also learned some less functional, more touching signs, like the ones for "I love you" and "mommy."
"We understand each other's emotions and feelings," Geffen says. "I love her so much."