When you use 'would', imagine you are in the position of the person who will do the action and say what would you do?
It is an event in the future.
The speaker imagines the subject will do the action.
They say what the speaker 'would' do.
Subject + would + present form verb + noun / noun phrase
What should I have tonight?
Fish and chips
Jackie would have the cheeseburger.
Steven would have the pizza.
It is an event tonight.
The speaker imagines what Jackie and Steven will have.
They say what the speaker 'would' have.
Which dress should I wear tomorrow night?
I would wear the red dress.
I would wear the green dress.