I don't understand these bolded expressions

It started off as the best job I’d ever had. It was called Terror Under The Arches and I worked alongside a lot of out-of-work Gaelic TV actors and Satanist Goths in a sort of Haunted House theme show, where people would be lead round spooky rooms where various creepy things would scare them. I mainly played the part of a Chainsaw Wielding Maniac. Wearing an orange prison jumpsuit and a muzzle, I’d wait until the already-terrified punters were gathered in a grotesque cell with a faintly flickering light bulb. When their anxiety had built to a peak I’d scuffle about, making a few guttural grunts, then pull the chord on my chainsaw, coughing it into life. I’d then burst into the cell, wide eyed and revving the saw as hard as it would go, two-stroke smoke stinking out from the exhaust. The chain had been removed, but they didn’t know that.

I can understand the words 'scuffle' and 'cough' from the dictionary but I think they have a more differet meaning with some extra words. And I know 'lead' is a verb and its past from is 'led', but I really don't get why it has 'be lead' in here and the meaning of 'lead round'. I think it means 'to show from a place to a place around to people', but I'm not sure.