And in the USA, GA pilots have access to all the airport facilities just the same as the jet drivers. You have use of pilot lounges to chill in, coffee, flight planning computers even showers in the larger airports - yes you can even look at Dopler radar pictures on the computer which gives real time weather! You can actually get to see where it's raining/storming right now! The only thing you can't do in 99% of USA airports though is to pay your landing charge!
Anyway g747, don't worry, the controllers in the US are great people and providing that you make an effort to do your best, they will be very forgiving.
Just another piece of advice talking of ATC, if ATC allocate a descrete squawk code, stay wth that squawk. If you use your initiative and squawk VFR 1200 you risk a telling off. Sometimes especially if you are low ATC will lose you. Even if you haven't spoken to them for half an hour and decide that you don't want a VFR following anymore, don't even think about changing frequency and squaking VFR without telling them and getting the response "frequency change approved, resume own navigation" to which you simply say your tail number and if they are not busy, I always say "thank you sir"
Always read back runway and hold short instructions otherwise when they are really busy just say your tail number to acknowledge that you have understood the message.