Sound advice from blimp.

I also think if you're going to write Geordie you need to get inside the mindset of your character. The following are therefore recommended:
1. drinking vast quantities of Newcastle Brown Ale on a daily basis.
2. standing outside in sub-zero temperatures wearing a T-shirt or Newcastle United replica strip.
3. placing a packet of fags... no wait that's probably misleading to someone across the pond .. cigarettes under the sleeve of your T-shirt.
4. shouting abuse at Macams (people from Sunderland)
And before anyone says I'm painting a negative stereotype of the Geordie race, I'd just like to point out that I've based all the above on my own mother ...
