Flaneur
Not having a dig at Liverpudlians at all. I think you're a Red but if you'd have been Northampton, I'd have probably have asked the same question - just out of interest, peoples perspective.
I have a few friends, big England supporters, Leeds, Man City, Geordies - could have been anyone of them (no, see below), singing, passionate, following their team - decent people. Not all England fans are knobs.
I personally, watching Leeds abroad (nostalgia's not what it used to be!!!), give me a little local bar up a side street rather than the main square. In Rome, the Colloseum, Madrid
The Prado.
Now! Having said all that - the guy with the 'official hooligan' shirt is a 100% knob!!!