"Public affirmation" refers to expressing approval or support openly and visibly to others. It is a way of declaring or confirming something positive or expressing agreement in a public setting. Full definition
For instance, you can send emails or Facebook messages to selected bloggers, Twitterers and other online activists, usually in the hope of creating connections that will lead to more public affirmations of support. (epolitics.com)
Much of a campaign's online outreach will take place in the very public venues of blogs, Facebook, YouTube, MySpace and Twitter, but politicians and staff can also reach out behind the scenes, for instance sending emails or Facebook messages to selected bloggers, Twitterers and activists, usually in the hope of creating connections that will lead to more public affirmations of support. (epolitics.com)
In any case, practicing homosexuals today more frequently do not consider their orientation a private matter, but are inclined to seek public affirmation for their lifestyle. (firstthings.com)