I am one of those people who doesn't make snap judgements about people based upon their looks. My own personal experiences in having people mis-judge me has taught me that looks can and often do fool you.
I'm a fairly big guy. Not overly tall at 6 feet, but I have a large build. Except for my currently ummm, ample belly due to several months of inactivity while healing from my injuries I have a pretty muscular build. Very broad shoulders, thick neck, and broad chest. And plenty of upper body strength to match.
I also have several tattoos on my upper arms, and one on my chest. All intentionally located so as to not show when I choose to wear dress shirts. I also have had a good many "experiences" in my life and have the many scars to prove it. Over all I have a rough and rugged look I guess you could say. I've also been told I have "piercing eyes" whatever that really means.
So what the point? I'll tell you. People often make certain judgments about me based on these physical charactoristics. Sometimes this can be a good thing. The guy who's looking for a bit of trouble will often pass me up for someone who looks a bit less like a serious threat. I can pretty much walk around anywhere I please without much fear of being attacked. And, to be honest, at least until my recent injuries, I could more than hold my own in a fight if need be.
But, if I engage someone in conversation it doesn't take very long before I spot that slightly confused or surprised look in their face. They often have the same look I would imagine they would have if they were suddenly confronted with a gorilla that spoke fluent english and was quoting Shakespeare.
You see, I have a mind, and a pretty darned good one if I do say so myself. I was something of an anomaly is school. I was the football player who got straight A grades. I am something of a geek which surprises people. Many seem to imagine the geek as the skinny nerd with a pocket protector and taped glasses, or the obese fellow who's spent far too much time eating cheetos in front of the monitor.
I am rarely offended these days when I see that not so well hidden look of surprise in people when it dawns on them that I am not the neanderthal they thought they were dealing with but instead I am as intelligent as they are and possibly more so. Instead I am secretly a little amused by it because I know they have just had some little prejudice dashed upon the rocks of reality.
For some, a little piece of their sense of superiority has just evaporated, for others maybe a few of the little associative links in their brain just short circuited. Either way, it can be amusing to watch them attempt to mentally regroup and, as often happens, try to totally shift gears to a different level of conversation than the one they started out with.
So, don't presume you know too much about someone based upon on the outer appearance you see before you. They just might short out a few of your brain cells.