ROFL SO THIS IS RANDOM BUT UHM LADIES PLEASE ANSWER SPECIALLY IF YOU DID THIS BEFORE LOL >.<?

so i was at walmart in the parking lot in the car waiting for my mom to get done with shopping or w/e and i had the window down in the car with the seat back a little and this girl walked up to my car and said hey how you doing and then i said fine wbu then she said thats good and left my expression was o.O wdf >.< you not trying to talk or anything but QUESTION WHY DID SHE DO THIS WAS SHE BORED OR WHAT OR JUST WANTED TO SAY HI idunno>.>< and shud i have chased after her saying something