Here's a quote to get you started:
"Want to see a Yank blush? Ask them to "nurse" your baby. It's another of those words that have a completely different meaning in different countries.To an Aussie, you're asking them to hold your baby, but to an American, they think you want them to breast feed the baby. And yes, this did happen to an American visiting a new mum in the hospital. She was quite flustered and we didn't know why until she finally told us. Could have been worse. We could have asked her husband first."