In my opinion, to be welsh is to embrace the culture and history of Wales. From the Celtic tribes to the modern factories, culture plays a key part in every Welsh citizens life. Be it in the form of jewelry, or the language that was once widely spoken. The Welsh are a proud people that are backed by hundreds of years of heritage and cultural values this gives the Welsh their pride, more so than other countries. Depending where you are from, being Welsh can mean that you were born in Wales or, like the English, where your parents were born. For the majority of Welsh people it is their attitude towards the heritage and history of the country that inspires their patriotism and love of Wales.
This, in my opinion is what it means to be Welsh.