"For the girls" please?

So I was in a relationship for almost 2 years, starting sophmore year and just ended I'm 17 years old, I met her at a football game and she was friends with my friends so it was pretty easy to start talking to her when we started texting she immediately began to like me it went pretty smooth, that was my first real relationship. Its been 2 years basically since iv tried to get a girl I guess and I'm on summer break now, Its been about 2 months single now and iv just now started to want a relationship again.. I go to the mall, I go places a lot and see pretty girls and stuff, my main question is like how do you girls like to be approached, I'm very respectful to girls, I'm attractive and, great personality. I feel like its kind of weird to just walk up to someone random and stuff like at the mall or whatever like I said its been about 2 years I'm kinda rusty lol thanks!