No easy answer. It's like asking someone to swap seats. You can ask, but if the answer's "no" that's the end discussion. Sitting next to a window seat and can't see your laptop screen because the shade's up? Same answer. Also, one person's "daytime at arrival" may not be the same as yours.
On an Island Hopper trip last year, I booked a window seat and was actually taking pictures out the window when my seatmate asked me to close the shade. I politely pointed out that would make it difficult to take pictures. When there was nothing to shoot, I did lower the shade a little bit to cut down on light but still be able to see outside.