[ Singles & Dating ] Open Question : GIRLS. Should i introduce myself to a girl?

there's a girl a year level below me, that i have a crush on but i can never find the right time to approach her as she is with a group of friends usually. Anyway i was wondering if it be weird if i approach her randomly, introduce myself and start a conversation with her? do you have any tips on approaching? by the way i don't know any of her friends.

Source: http://answers.yahoo.com/question/index?qid=20110509035756AAkCbBW

Justin Timberlake Halle Berry Jennifer Lopez