Are you trying too hard?
You’ve earned a doctorate, and you style yourself Dr. Firstname Lastname Ph.D. Either would suffice; neither would be better.
You let it be known how many Facebook friends/Twitter followers/LinkedIn connections you have, or how big your vocabulary is.
Your personalized license plate hints at your prowess.
You say “an historic.”
You have a Chesapeake Bay license plate on your Chevy Suburban.
For that matter, you have a Chevy Suburban.
Or even worse, you live on a suburban cul-de-sac and drive a Land Rover.
Your children’s first names are last names.
Your pets’ names are last names.
Your potato chips are from Whole Foods.
You want to cut federal spending, lower taxes, and amend the Constitution to require a balanced budget. Right now.
I myself would be trying too hard if I tried to make this list exhaustive. Your suggestions?