But in order to make your relationship a success, there are a few more things you need to understand. We're here to help. Just scroll down and pick up several pointers on what to expect from your Mackem mate.
5. Change of plans
Made plans in advance? Expect them to be changed at the drop of a hat if the match is rearranged.
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6. 6 in a row
Need I say more? Think Newcastle and half-a-dozen magic moments, then you'll know.
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7. Let them get carried away
SAFC fans have had a pretty dark time over the last two seasons. Now, they're winning, let them enjoy it!
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8. It isn't 'just a game'
Don't say it. It's life or death. Saying it will only end in long explanations about cold nights at Roker Park and why their dog is called Defoe.
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