I must admit I always feel lousy not being able to speak the native language of any country I'm in.
My French has improved over the years but not enough to have a conversation, but more to ask for food or supplies on our travels.
I once walked into a shop in France and in my best French I gave the lady behind the counter my best "Bonjour" to which she replied in English, "Agh, you are English"!!!
I also went into a Bakery and asked for ... well I'm not sure what I asked for as a father and son burst out laughing and the shop workers looked shocked/embarrassed!!!
Basically, all countries do seem to appreciate your efforts for trying, and literally everyone speaks English. No matter how poor their English is, it is generally 100 times better than my languages and you end up muddling through. Most like to have had your company for a brief spell in their regular French or which ever country you are in.
We always keep from the main tourist bits and head into the more remote small village with one or two shop locations.
Over the years we have been to all the Western European countries except Portugal (which I would love to do) and never had any issues with language, local customs, locals or anything. I actually think there is more chance of something untoward happening whilst here in England!!!
We love our European road trips. We never book campsites, just the ferry dates there and back and we go where we want in between. No planning just winging it. We have slept in service areas putting our tent up on the roof in different countries (French have showers to freshen up in the morning),
used B&Bs, small local hotels, country lanes, oh yeah and campsites!
Its just one big adventure, and it begins the moment the wheels turn on the driveway!
As for the weather at the Show, we were in shorts and T shirts and loading up on sun tan lotion!

If you are at the show Villager, or anyone else, it will be cool to meet up at the show or campsite over a beer or two!
One of the perks to the shuttle bus is being able to have a beer or two at night and not worrying about being over the limit the next day. I'm no beer monster, but the German beers don't half go down well.