Niall:
At an Oreo Factory. He wanted to do something that nobody else would ever think to propose at. He had the people Spell out "Y/N, Will You Marry Me?" You said yes and you guys got to take home several things of Oreo's with you.
Harry:
At the top of A Ferris Wheel. You love to see people on the top of the Ferris wheel, and so Harry thought of proposing on the top of the Ferris Wheel.
Liam:
On the beach. He wrote it in the sand under the bridge, and was set to take you there after dinner. You said yes.
Louis:
Being the prankster he is, he can be serious at times. He proposed to you on the Fourth of July in the middle of fireworks. When he did, so many people saw and you said yes.
