Notice the light before moving anything
Spend a few minutes in the room at the time you actually use it. Morning light may be lovely, but it will not help a reading corner you only use after dinner. Notice brightness, glare, the view, and whether you feel exposed to people outside.
Try sitting near the window, then a little farther away. Find a position where you can see out without feeling as though you are on display. The most comfortable spot may be beside the opening rather than directly in front of it.
Give the place an edge
A chair often feels more settled when its back is near a wall, a low shelf, or another clear edge. You can look into the room while borrowing some shelter from that boundary. Keep the everyday route through the room beside the seat instead of behind or across it.
Use something you already have: a comfortable chair, a cushion on a broad sill, or a small bench. The aim is a place that invites staying, not a new shopping list.
Make staying easy
Put a small surface within comfortable reach. A book, a cup, and a lamp need somewhere to land. Check the practical things that determine whether you will actually use this place: a cold draft, harsh afternoon glare, or a seat that is too hard.
After sunset, a local lamp can keep the corner useful. Try a warm pool of light at the seat instead of relying only on a bright fixture in the middle of the ceiling.
An original Timeless Design guide, inspired by Christopher Alexander and his collaborators' approach to pattern language. For the source work, explore A Pattern Language and The Timeless Way of Building.