During World War I Anastasia and her sister Maria visited hurt soldiers at a hospital at Tsarskoye Selo. Because they were too young to become Red Cross nurses like their mother and older sisters, they played checkers and billiards with the soldiers and tried to make them happy instead. Felix Dassel, who was treated at the hospital, remembered that Anastasia had a "laugh like a squirrel", and walked quickly "as though she "tripped" along."