Just a little idea I had for immersion to make your character feel more a little more alive:
If your character is waiting around while the sun is shining they should take a moment to enjoy the sun and get a small morale boost depending on the season, larger in summer and/or spring smaller in autumn and/or winter (sun in winter is pretty nice though). The same if they wait around at night outdoors with a clear sky to gaze at the stars. Most people have never or very rarely seen the stars without artificial lighting blotting out many features of the night sky. Artificial lighting that is gone after the cataclysm. The last could be if you wait in a forest or on a river/lake(shore) tile and simply take the opportunity to take in the natural beauty of the place.