Careful, even humble bragging often backfires: study

REIGN IT IN: "Check out my new car, everybody!" A new study cautions those likely to engage in self-promotion.

It might seem like a harmless way to let everyone know all's well when you post vacation photos on Facebook or tell your colleagues about your recent promotion, but a new study says such self-promotion often backfires. 

Self-promoters overestimate the positive reaction they would receive upon sharing their good news, according to the study, which was published in the journal Psychological Science.