'Bollocks' isn't a well reasoned argument.

You seem to be hanging on to the idea that to be posh is to be better. It isn't, and it isn't to be worse. It is just different.

To answer your question, how hard do I try? Like anyone else it would depend on how much i want to fit in, to be accepted. I have tried in the past, these days i make no conscious effort but i know my accent changes depending on who i am talking to.

It is a bit.

Oaky,

You are indeed correct that the "well to do type" won't be caught dead talking about wonga, however they do it subliminally by exhibiting it obvious ways...cars, clothing, vacations, hotels they stay at et al

Simon Cowell was once asked by Graham Norton, if he will ever drive a Miata? Simon's response..."are you mad", my friends will never speak to me again

Hmmm....this is debatable and open to interpretation

Surely Simon Cowell is the antithesis of posh. He's just rich.

We used to have a piano at home. We pronounced it pianno.

Depending on who she was talking to, my mum would change it to piah-no.

Sounds more like a perfume. Or should I say scent?

Not really. That's an excerpt from the concise OED.

As for your other point on Cowell, dbd's said it already. If he is your exemplar of posh, you have entirely misunderstood the concept.

I cannot define posh because it has no meaning.

Well bred is a difficult one for me, other than relating to say the Royal family who IMO are all cocked up bred based on wealth

Cultured - well, I guess that has to be defined for someone who cannot relate. Possibly again using the Royal Family. Could it be the clothes they wear, manners, grooming is different from what I do or wear? I suppose cultured could be viewed differently by folks from different walks of life

How folks speak (accent) as long as I sort of get what they're saying I'm OK- for me they'd just be everyday common or working class folks. If they purposely are trying to infer posh by using confusing sentences or words or terminology, well, that just does me head in.

Polite. I need to think about that one more

in any accent its a pee-an-o or pea-an-o

This is starting to feel like The Twilight Zone.

what is?

Frightfully infra dig for one to reference a television program in polite conversation, is it not?

So you are saying your mum was able to metamophorsize?

Actually, it's eau de toilet

Can you see anything on the wing?

Eau di cologne, innit? The chav word for scent. Also used for phone, as in "Oi, china, you're wanted on the eau di". (Back when people shared telephones).