A person's 21st birthday is a big milestone, whether or not you like to drink or party. But if you want to have a classic 21st birthday party, this is what you need as a baseline.

1. Balloons

Get number balloons so everyone knows how old you are! Plus, they are a cute and fun prop for photos. And come on, who doesn't love balloons?!

2. Champagne 

Even if you don't like to drink it, popping champagne on your birthday is just fun!

3. Birthday cake

Blow out your candles and make a wish for a happy 21st! A birthday cake is a tradition every year, but it is especially on your 21st!

4. Friends

There is nothing like being surrounded by people you love and who love you back on your special day! So get your friends and have the night of your life!