If you hair is fine and you would like to wear it up, then we would suggest that you do not wash your hair on the day as it will be too soft to stay up. Wash it the evening before instead and do not use an intensive conditioner as again, it will be too soft. Also, whilst styling apply a root thickening product to give your hair some oomph. Gentle backcombing is another trick to give your hair that much needed grip. If you visit a hairdresser, they may be able to thicken your hair with a hairpiece that blends to your own hair colour - its a great cheat!