In order to have a story your character has to face a challenge at some point. Otherwise it is one long description. Think about the situation to find a potential conflict, maybe the bus will break down on the way home. Maybe she'll accidentally get on the wrong bus, or it will get hijacked. Maybe she'll have to walk or hitchhike to get home.
Think about your own interests too. If you like the story you write, chances are good that others will too. If you like, the bus, and everyone in it, can drive through an alien's trans-dimensional portal and end up exploring an alien world. It could be a fairy's magic portal and a fantasy world. Maybe something completely different happens.
Whatever happens, remember that the conflict is your story, and when all the conflict is resolved, your story will be too. Have fun with it, and good luck!