But there's negative value in telling people what you're really up to. I first heard it from Derek Sivers who said that Repeated psychology tests have proven that telling someone your goal makes it less likely to happen [1]. And it actually makes sense...
So it might be better to engage in some little public self-embarassment than go around telling what you're up to...
[1] http://www.ted.com/talks/derek_sivers_keep_your_goals_to_you...