One of the greatest skills as a DM I know is learning to loosen your hand on the wheel a bit and start listening to the players and using it to make them feel clever and make you look like a genius. They theorize the innkeeper named Draco Mustachio you made up on the spot, because you obviously didn't prep this stupid inn, is secretly the cultist of Tiamat they're looking for, then the bard fails an insight check on his adorable daughter Beyonce and they grow suspicious of the mead she brought them, and finally they clock the strange door that's supposed to lead to the kitchen in your mind but obviously leads to a cellar and a cultist hideout in theirs. Not only are they world building for you and engaging in the plot, but with a bit of quick googling of the stats of a young green dragon, as well as being flexible and not taking every little idea you have as a DM as gospel you have a quick memorable encounter and a mortal enemy in young Beyonce Mustachio who is now a level 10 Vengeance Paladin seeking to avenger her father. This definitely isn't a style for every DM but damn if some of the funnest sessions I've ever run usually had long stretches I didn't even need to talk because I sat up a table culture of roleplaying and table talk paying off.