Introducing yourself or someone
Chapter 14 - Vocabulary classified by themes
Very often, you have to introduce yourself... The most common sentence to do so is:
To introduce someone else, your wife for example:
The verb "to introduce" is "se présenter" (1st group verb). It can be used to introduce yourself or to introduce someone.
If you want to talk about your living place:
... or about your age
So, a good introduction would probably be:
Bonjour, je m'appelle [your name]. J'ai [your age] ans et j'habite à [your town].