Whatever you are asking for, you must have 100% confidence in it. If you doubt yourself, why should someone else not doubt you as well? I see this quite frequently when I train salespeople. When they have this attitude of “oh, I won’t approach this client, I know he will reject my offer”, their entire physiology and their psyche convey a defeated appearance. Chances are, the client will pick up on it and not buy. You need to ask with absolute conviction. Show that you are sure of yourself, of what you want, and of your success. Also, be sure of the value you can provide. It can’t be wishy-washy. No “if’s” or “but’s”; have complete certainty in your entire presentation.