Curls will never go out of fashion. They will always create a classy yet unfussy look, perfect for a night out or a party situation. If you want to create a look quickly, curls can work beautifully.
Different kinds of curls will give you a different look entirely; you can opt for wavy, loose curls, or more springy curls. The look you end up with will also depend on your natural hair type and how well it curls. If your hair is naturally very straight, then you will probably be better off creating some loose waves, as they will hold in your hair better. If your hair is naturally quite curly of wavy, you may just be able to scrunch it up with some products and it will hold. Either way, you should usually put plenty of hairspray onto your curls so they will stay in place. They will probably begin to drop throughout the party, especially if it is warm.