Uhhm? Adam Lyons anyone? He broke this down into this, then I applied it with golden results:
"Hi! I am sorry to bother you... I am on my way to see my friends... I noticed that you really have a nice smile and I will be kicking myself for a day if I didn't get to introduce myself to you at least... I am Adam!" The ellipses meant pauses. Lyons broke it down and explained the choice of words.
"Hi. I am sorry to bother you" - something about being courteous. Remember this is daytime gaming so girls are on DEFCON 2. "I am on my way to see my friends" - false time constraint so she won't have to worry about you sticking around. "I noticed that you really have a nice smile" - then pause. Who does not love compliments? "I will kicking myself for a day if I didn't get to introduce myself to you at least" - something about softeners, Lyons said. "I am Adam!" - you should calibrate the situation first before giving your name. Remember, your name should be a reward to the girl for giving you IOI's. SO make a nice pause + eye contact after your softener. If she gives some nice vibes then say your name. If not then wait some more or force it.
And how are we going to close this? Remember you're in a time constraint right? Say "Look, I know if we are both in a hurry but I would love to bump with you for some sushi. Punch in your digits here so I can call you later."