The only thing worse than tooting your own horn too loudly is being falsely modest! So if you did something worth crowing about, crow away! No good can come out of the 'aw shucks' act when you really don't mean it. Who are you trying to impress, anyway? If you want to impress them, point out to them what you just did. As soon as you start hiding your accomplishments, you start minimizing them and giving people an excuse to ignore them. It's the wrong path to go down, especially now.