[Akujin]

I have studied up on Japan ready for when I go there, Its seems that as long as you don't make a complete joke out of yourself and don't be rude to anyone then your ok, it will pretty much be exactly like you'r expected to behave back home. Although I have read somewhere and been told by travel agents that don't worry if you get some wording wrong "if" you try to speak some japanese as they will be happy that you at least tried it and they said that Japanese citizens don't tend to show much emotion in public.......can anyone tell me if this is true or not??