Malala Yousafzai shakes hands with Canadian Prime Minister Justin Trudeau in Trudeau's office on Parliament Hill in Ottawa, Ontario

Malala Yousafzai signs a guest book with Canadian Prime Minister Justin Trudeau while her father, Ziauddin Yousafzai and her mother Tor Pekai Yousafzai look on, at Parliment Hill in Ottawa, Ontario

Canada's Prime Minister Justin Trudeau (R) presents Nobel Peace Prize laureate Malala Yousafzai with honorary Canadian citizenship during a ceremony in the Library of Parliament on Parliament Hill in Ottawa, Ontario, Canada

Canada's Prime Minister Justin Trudeau (L) walks with Pakistani Nobel Peace Prize laureate Malala Yousafzai in the Hall of Honour on Parliament Hill in Ottawa, Ontario, Canada