a group of friends

You are a girl and you have a group of friends. You used to hang out, but two years ago you moved to another city and didn't meet, but you still had a common chat with them where you corresponded, and then one day they agreed to hang out and set a time and place, and I decided to give them a gift and came to the city and went to the destination. They didn't know that I was in the city and that I would come at all, and when I was nearby, they noticed me.