Eddie carries the stolen meat in his trousers to the flat, when he is with Richie and Filthy at the peep show the meat is gone, yet it's back in his trousers when they are in prison.
When Eddie punches Richie in the shop, the punch is too far away from Richie's face, revealing an obviously noticeable gap.
Richie says that he "must learn to read sometime" but earlier he was reading from Jimmy Tarbuck's golfing anecdotes, which means he can read.