I haven't eaten meat in years, I am a vegetarian, or more strictly, I'm a vegan
That's cool. What made you go vegan?  
Meat is digusting, and causes many health problems.  I am a dietary vegan because I don't eat any animal products at all, including eggs and dairy.
So, if I eat no meat but I eat lots of fish...I am a vegan and I didn't know it?  What health problems?
No, as a vegan you wouldn't have any animal products whatsoever, but that is only if you care about your health.  Meat increases rates of cancer, diabetes, skin problems, and organ issues.
Wow, I didn't know that.  Is there some kind of science to back it up?  It would be hard for me to give up fish.  I don't think there are many vegans in the US, are there?  You might want to live in another country or maybe I'm wrong.
There are a lot of vegans in the US I just don't know any.  It probably would be easier to live somewhere like India where people don't eat meat as a cultural norm.
True. I've heard of that.  They follow Hinduism and so they can't eat meat?  I think I have that right.  I don't think you'd want to move to India just for that. What do you eat that is your favorite?