I totally disagree with the person who said not to put your hand in her cage. She needs to get to know you physically and emotional. Needs to smell and feel your hand while you talk to her. This is the best time, while she is this young, to create a trusting bond between you two.
I had Olive's DNA tested thru a blood test with an avian expert vet to find out her sex. Not that it was so important, but I wanted to know what to name her and to relate to her better.