Hair help!! 🙆

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Okay so I have work tomorrow from 8 till 6 but me and the girls are going to this huge party after it but our train is at 6:10, so I don't have enough time to go home, I can take my makeup with me but I don't know what I can do with my hair since I can't wash it! I have to keep my hair up at work so does anyone know any updo's I can wear in my hair through the day that I can take out on the train that will make my hair look nice? I have quite curly/frizzy hair so pleats won't work! PLEASE PLEASE HELP!!Â