أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
first of all you should be confident from you job
and you should have a good background about the work that you are presenting
plus you should like your work before the coustomer do,
to Convince the customer by your design
it's an easy way when you bielve in your self