For introduce yourself in french you can use "je m`apelle..." - that means "my name is...". If you want to speak about you, you can say "je suis..."- that means "I am...", "j`habite..." for "I leave in...", "je veux..." for "I want..." and so on. It would be easier for me to help you if you tell me what you want to say about you. For asking someone "What about you?" you can say "et toi?". You must keep in mind that in french the pronunciation is a lot different from writing.

merci.

tres bien.

And it is "to introduce myself", not "ourself". If you want to speak in the name of a team or a group of persons you must say "ourselves".