How does a younger brother bond with older sister?

My older sister and i are just getting to know eachother at this moment.She is 6 years older than me,but i want to have a close relationship with her.She says that she is overprotective which i like.I look at her as someone to follow around.You know how you have that older sibling who will be one that you attach to.Only thing that gets me is that she plans to get me drunk on my 21st birthday in like 2 months.I want to know if i was your younger brother,what would you expect from me?.I dont smoke or drink.Im something like a good boy.I need advice on how to bond with my sis.