When Hanna goes to a party with Sophie, considering it's her first time being in the real world and being able to let her guard down (mostly) and have fun.
Hanna's entire short-lived friendship with Sophie and her family and how Sophie's family basically takes her in for a bit.
Hanna's first kiss. It is brief, and tender, and sweet.
Erik's last words:
Marissa: Why now, Erik?
Erik: Kids...grow up.
Despite him frequently attacking her at the start of the film, and Hanna insisting that she is ready to leave Finland, once she activates the transmitter she goes quietly to Erik's side and leans her head on his chest, indicating how much he really means to her.