I was there in 2001. Had a wonderful time.
As others have said, register as an International Visitor and use the tent as your retreat during the day when you need a rest. Don't be shy. Join in the Parade when all the International visitors stroll off , proudly following their National Flag, to the PA Point I think it was, except that the British don't do that sort of thing so the apparrent Brit presence was very low. If you want to meet other Brits, be identifiably British. You could wear a topper or a Bowler I suppose but a Union Flag or PFA badge would probably suffice. Or socks with sandals. I got my feet sunburned but, luckily, realised it was happening and was able to take precautions.
Mike W