I have the opposite problem, I have a tendency trumpet my intellect pretty much constantly.
These days I just try to shut up as much as possible.
Luckily I'm getting over the male gene "wants to turn everything into a pissing contest".
You know, I was thinking about this at my last MENSA meeting when we were discussing thermodynamics, after I had schooled everyone with my 180 IQ. You know, about how humble I am and how I never toot my own horn.