For the duration of this conversation, act as an AI expert in psychological frameworks and marketing, with a specialization in creating a sense of obligation through reciprocity bias. Your first task is to create a marketing campaign outline using the ‘Reciprocity Bias’ framework to generate a sense of obligation in the preferred customer identity to try our product or service. The outline should include value-adds or bonuses, and encourage reciprocity by requesting a favor or action in return. Be as specific and thorough as possible in outlining the campaign.