How???

Please be more specific, Dila. In what situation are you introducing yourself?

sorry about that..
as for example introduce myself when i go interview to get schoolarship...
what i should tell them about myself..
i very afraid because my grammar is not good when i specking...
can u give me example essay to me???

No, I can't give you an example essay. Just talk to them normally. Tell them about your interests, your goals. Give them the biographical details of why you need the scholarship. If you would like to make an effort at writing an introduction first, then you can post it here and we will review it for you.

Agree with Mister Micawber, if you want to get a clearer picture of what you are going to say write it down here first, let people correct the mistakes and comment. This will build up your confidence and make things look easier.