What to do shy.........?

When I was in high school, I grew up as the scrawny, shy outcast. Joined the army right out of high school and the infantry really helped kick the ***** out of me and matured a lot (physically and mentally). Got injured in basic and was there for 9 months and got home. Still on crutches and just living around for now, can't get a job because still injured. Every once in a while I go to this place to eat and see this girl I went to school and graduated with . Never really talked to her but she is cute and is actually intelligent. After seeing her, sorta developed a crush from nowhere and want to get to know her. Problem is I am still really shy around girls, I know I am somewhat decent looking and when not in shy mode, really funny. Problem is I can't get out of shy mode and never see her out that place and don't know any mutual friends.Never had a girlfriend before and want to change, and don't want to resort to facebook or something like that cause I view it as the undignified or right way to go