When the actions or surroundings are important, you should add as many details as it's required. That's clear. What about trivial stuff? Examples: He sat on the floor and drank a beer. He sat on the floor, clicked open a beer can, and gulped from it. He sat cross-legged on the floor, clicked open a can of Budweiser, and took a few gulps from it. Same with mundane surroundings: He walked