Seeing and noticing are different jobs. Your eyes open on the same ceiling every morning and hand you almost nothing, because the brain files repeated things under already-known and stops paying attention.
Which means appreciation isn't really about opening your eyes. It's about looking at something you stopped looking at years ago — the crack in the ceiling you've now had across three apartments, the way light lands on the floor at exactly this hour.
Pick one object you walk past daily and give it ten seconds. It usually holds up better than you'd expect.