which directions for hardwood floor installation to make room and hallway feels bigger and wider?

Question by Traveler: which directions for hardwood floor installation to make room and hallway feels bigger and wider?
My place has a hallway connects with a master bedroom (one end of hallway) and two small bedrooms (another end of hallway).
Installing hardwood floor in the same direction gives little visual impact.
I read that making diagonal installation would make the room look larger. But will it be good for small rooms?
I need some good ideas on hardwood floor installation directions

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