Hi Michael,
Its a very informative article for beginners.My cockatiel is 2 months old when I brought her home.She has learnt to step up without any hesitation when I take her out of cage and feels safe and fun in my hand.But when I leave her on the floor or somewhere,she just roams and do what she likes.But refuse to step up on my hand.When I keep my hand near her,she just goes away.And the breeder has practised millet as a food for her.So its getting difficult for me to change her to healthy food.I tried different ways (even the ways suggested by you - I eat by keeping her on my shoulder) but she is adamant.What can I do for this?