Oh, I can't emphasize this enough...Bragging is unattractive, crass, unrefined, crude, lacking in sensitivity and, generally obnoxious and unappealing. Some folks ain't got no class... :-) ...and are ignorant when it comes to etiquette. The result of this ignorance...FYI: No one will want to be around you.
Let your work and accomplishments speak for themselves. Include awards and accomplishments in your vitae (biographical info) and move on. Share your art and let the observers be the praise givers.
Bottom Line: If you want to promote your work, get an agent.