-finish each others sentences
The first time it happens is shortly after he rebuilt Baymax. He had been thinking of how to add more medical equipment to the robot when he finds himself absentmindedly speaking:
”’Please help me.’”
He wouldn’t have even noticed he said it if it wasn’t for Baymax immediately asking what he needed assistance with.
"Huh?" Blinking in confusion, Hiro frowns up at his friend. "You feeling okay, buddy?"
"You had asked for help, but did not specify what you needed my assistance with."
It takes him all of ten seconds to clue in to what Baymax is saying and he jumps to his feet so quickly his chair rolls straight across his lab. “Is that—”
—you, Tadashi?
Hiro waits until the urge to speak hits him again:
“‘Took you long enough, knucklehead.’”
For the first time since his brother died, Hiro Hamada cries tears of joy.