Being Welsh (although from Cardiff, so not very Welsh), I would say that the people are different too, particularly in South Wales. More open and friendly, and very quick to start a conversation, particularly in the valley towns. I think you always find that in a people brought up on difficult and dangerous work, such as coal mining and steel making. Most of my father's brothers were coal miners, and many with biblical names (uncle Aaron, for example)
I'm glad my thread has brought back many happy memories.
Kind regards,
Bob