I have no boy friends as I have small breasts. How to increase the size?

Hi All.

I am in a leading engineering college. I finished my schooling in a girl's institution. I went to a college which had co-education where none of the boys talked to me because I had smaller breasts. Boys talk to girls who have big breasts and who wear sexy outfits. I feel bad. How can I increase my breast size? What kind of bra should I wear to get good cleavage?

Also, will use of high heels help me to get a good background and bum? Are jeans or leggings good for a healthy bum?

Thanks in advance...