While his training's on track our Hollywood spies tell us he's still getting his head around life in Los Angeles.
From choosing the right gun, to ordering eggs and then working out how much you need to throw in as a tip, life stateside can be even more complicated than a 200-page NFL playbook.
But stick at it Jarryd, once you've got an NFL contract you'll be able to pay someone to do everything for you.
Here are 10 things that'll have the dual Dally M medallist thinking WTF?
1.Can we have a cleaner to the gun aisle please? – Yes, there are supermarkets in America that sell guns. Ok, so they aren't on every corner but they exist.
2. Drive through ATMs – That's right, you don't even have to get out of your car to make a withdrawal. Sounds ridiculous but when it's minus 10 outside the idea has merit.
3. Tipping – Ok, this sounds simple but can get more complicated than an NFL playbook as the night progresses. The basic rule is you tip 10-20 percent of the bill but anything less than 15 percent will have the waiter/waitress thinking you're a cheapskate. Oh, and you only tip people who 'serve' you, and taking your money at a grocery store or gas station doesn't count ... apparently. So don't tip shop assistants and opinion is divided about tipping cabbies.
4. How do you like your eggs sir? – Americans love choice. Even ordering an egg can be complicated at first. Would you like them sunny-side up (cooked only on the bottom), over easy (slightly runny yolk) or over well (cooked until yolk is hard?). And that's before they offer you six different types of bread. And we'll explain what tater tots are next lesson. On the bright side, American bacon is far better than in Oz.
5. That Paul Hogan has a lot to answer for – At first it's funny. Get used to smiling politely when they learn you're from Down Under and they immediately trot out that old chestnut; 'Throw another shrimp on the barbie ... mate'. And Jarryd, don't fall into the trap of trying to explain that we don't call them shrimp.
6. This one's on me – No, the bartender is not being paid to get you drunk by The Daily Telegraph. It's actually standard practice, so we've been told, for the bartender to buy you every fourth drink. So just go with it Jarryd. But keep an eye out for cameramen hiding in the bushes as you leave.
7. The language barrier - If they're rooting for you, they mean cheering. A thong is not worn on one's feet and a rubber is not something you use to erase a mistake from your work book at school. A car boot is a trunk, a car park is a parking lot. Take away is to-go. If you want to pay your bill you tell them you want to close out. Oh, and excuse me is more of a statement than a question, as in: 'Excuse me before I walk straight over the top of you because you're in my God damn way!'
8. Portion sizes – Everything is big in America. Their idea of a small is at least a medium over here in Australia. So if you want a large, go the medium. A large will get you an extra-extra large. Got it?
9. You can shove your wiener, give me a proper sausage please – Our American friends love hot dogs but good luck finding a decent sausage. Not to worry Jarryd, you're on a diet anyway and those things aren't good for you.
10. Let there be light – Up is on, down is off. Oh, and they drive on the wrong side of the road, but you already knew that.
Jarryd Hayne: 10 things about America
