Terra was a master at pretending nothing was wrong except when her curiosity was peaked. As he holds out his pinky finger she blinks and then looks at it curiously.

"Am I suppose to do something?"

Terra had grown up in a lab with scientists and researchers. Some of them were nicer than others but she wasn't familiar with the concept of a pinky promise. She watched him hoping that he would instruct her on what she's suppose to do.