Psychologists have found that certain fears are bundled together in the subconscious mind, like wires on the same circuit.
If you can overcome your fears in one of these areas, you will also eliminate other fears on the same circuit.
The fear of rejection, or call reluctance, seems to be bundled together with the fear of public speaking. When you discipline yourself to join Toastmasters or take a Dale Carnegie course to learn to speak confidently on your feet, your fears of rejection disappear as well.
Your level of self confidence in all your interactions with others increases dramatically. Your whole life changes in a positive way.