There is a site that tells you about how parakeets need interaction with their owner.  This is even truer if you only get one bird.  They are used to co-mingling and won’t be happy if you can’t interact with them and teach them to trust you.  Many birds are hand raised before you purchase them.  They already know that the hand and finger are safe places to perch.  They know the command “up” which means for them to get on your hand or finger.   It says on the link that if the bird is not trusting, you can still teach it to interact, but it takes time.  There are step by step instructions, starting with how to let the bird get used to your hand being in the cage.  It also says in the article, not to let the bird out of the cage until it trusts you and understands that landing on your finger, is a safe home, outside of the cage.  Please read the information they give you for getting your little parakeet out of the cage, and into a happy pet-parent relationship with you.  These birds are intelligent, and it won’t be long before you two have bonded. http://www.lisashea.com/petinfo/articles/bird_hand.html