How will you approach your crush and make friends with him/her?

I remember my grade school and high school days. I had some crushes and what I do is to call my crush over the telephone. There were times when I introduced myself as someone else but there were times when I tell him who I really am. It was such a fun memory because most of them are very friendly. In fact, I had one crush who became one of my bestfriends. He knows many things about me and I also know alot about him.