I shall be sat with the West Ham supporters tomorrow so I hope I'm surrounded by a decent bunch; not that I will be showing my true colours but I certainly don't have a Cockney accent.
Wouldn't claim a particular affinity with West Ham but my best man and his brother, who is an equally close friend, are West Ham fans that moved to Cheshire when we were kids so I probably pay them more attention than I otherwise would. I've also got on well with a few Hammers at work over the years.
I've long thought City and West Ham fans have a similar sense of humour when it came to their clubs but that could be a skewed perception.