Few novice writers understand the importance of situation in fiction. Indeed, I suspect few professional writers do as well, which may explain why little has been written on the subject. There are boatloads of books on plot, characterization, dialogue, and setting on the market, but few that give advice on how to spice up your scenes. Those writers who have good style and an intuitive grasp of situation top the bestseller lists. Those who do not cannot get within a mile of a publisher.
Situation is especially important in character introductions.
You want your characters to make an impact when they first step onto the page. I have visited author showcases on the Web and read the excerpts of romance writers trying to sell their wares. She walks into a convenience store to ask the cashier for directions, he comes over and introduces himself, they both hit it off and agree to get together later to have some fun. That sort of writing makes for a great sleeping pill. In contrast, consider how Scarlett O'Hara meets Rhett Butler.