How to ''sell yourself'' during a job interview?

Question

How to ''sell yourself'' during a job interview?

Answer 1

First of all appearance:-

How you look, walk, stand, sit etc.

A good cert.

I do not have a good cert, so I am doing my own business now.

Then how you answer those stupid questions which you had already written on the application form.

Simplify it, how you talk and your attitude.

Keep on trying, don't give up.

Answer 2

know the company/job/position/products you are applying for and prepare yourself. Do your homework.

Dress well, speak eloquently, be confident, be on time.