If you're someone who is sensitive to rough language, then Australia might not be the place for you.
For example, based on your tone and facial expression, there are several ways to call someone a bastard. A lot of them are nice, joking ways, and some of them are the mean ways.
It's not at all uncommon to hear to here 'f' word thrown in casual conversation. Nor is it uncommon to here 'bloody h***' said a number of times in any given impassioned conversation.
Unlike some countries, you can even hear the occasion non-bleeped 'f' word on television.
This isn't to say you can go up to any Australian and be met with a smile when you say, "Hey there! How the f*** are ya?" It just means you shouldn't be surprised when it happens to you.