I've had to think long and hard about this, before answering. I really can't think of any individual behaviours that I think of as 'posh., though i not sure why.
The word just makes me think of it a whole lifestyle:
Posh is living in a large old 'family' home that has seen better days, with threadbare carpets and furniture, speaking with a public school accent, having several smelly old black labradors or spaniels in the house, swearing a lot, being slightly eccentric (what is eccentric could be the next thread!) and not giving a damn what anyone thinks about 'one'.
Actually, I've really liked the few people like that who I've met 
What's going on , on the street outside your home right now?



