I would smile the next talk we ran on each other..and tell her hey you..I'm in a hurry,so I'll talk to you later..
It shows that you have some plans,etc...
you can change it,it doesnt mater,the thing is that you broke the ice..
And then when you see her the next time you can say I'm sorry,it has been so rude from me not to introduce myself..I'm ... and whats your name young lady?!
I tried the second part often,but in other curmcumstances,and it worked like a charm.
oh and while introducing,look her straight in the ice,with a little smile..or no smile,just don't look so seriuos,look relaxed
