Well if you have enough booze it COULD make the crowd seem to be 100 strong!And, just sometimes. you'll see as many as a hundred people there....
My wife went there to watch a match, and she was appalled at the amount of booing by England's opposing teams fans. Whilst most of the crowd politely clapped or cheered, a small minority decided that booing jeering and swearing was the way to go. She was actually quite upset.