My budgies wont step up my fingers?

Hi, I've 2 budgies for about a month (2-year old and 8-mth old respectively). They both let me pat and touch them (the older one would be shakening and they dont seem to like being touched but they let me anyway), they never step up my fingers. Also they never wanted to come out the cage (I grabbed them out and they sat with me for a while but all they wanted to do is to go back in the cage. I really want to be their friends and I dont want them to be so scared of me.