Professional marketers need to 'stay in the positive'. Use positive language throughout your marketing communications. Stay upbeat. Assume that people want to help you / engage with you / buy your products and services.
Visualise successful outcomes, prior to the networking event, speech or sales meeting .
"Whenever a negative thought concerning your personal power comes to mind, deliberately voice a positive thought to cancel it out." Norman Vincent Peale
"A smile is your greatest social asset." Zig Ziglar
I wish you all the best with your marketing!