Or someone who doesn't define entire races based on individuals they meet.
Pattern recognition is the innate ability, often subconscious, of percieving patterns where there may or may not be any, and then attempting to categorize them based on pre-set categories.
Yeu may state that 'it's up to the individual' but yeu'll also have 'but in general, this seems to be a trend'. Do yeu think black guys have bigger dicks? Racist, regardless of whether it's true or not. It's a pattern attached to a 'race'. As 'races' don't even really exist, yeu had to've taken some qualities to make up that race in the first place to classify them as traits of that race yeu designed.
That being said, being willing to go out of yeur way to avoid trying to define a race by individual's standards is definately one thing, however, if yeu consistantly run into a trend, even if it's just BLIND LUCK, yeur brain will automatically form a pattern recognition of it. The better yeur brain is at pattern recognition, the more outlandish it can make these patterns, and make them with less information available. Essentially, the smarter yeu are, the more likely yeu are to have some form of racist profile, even if yeu go out of yeur way to avoid it.
Personally, I've come to the conclusion that many minorities play the 'race card' to get whot they want. I know not all do this, and probably not even 10% of people do it, but the fact that it happens often enough to be noticed, and loudly and vocal enough by the few who do, means that there is a connection there.
I've made connections that 'most people in the southern states are deeply religious', this's after having dealt with about half the states via a call center, and the upper states never tried to pray for me or convert me over the phone whent hey're supposed to be talking about their cable tv

The southern states had a fair number of people do this. I know obviously not all southern americans are like that, I know there's probably more atheists than there are people who go that psycho that they try to convert every single person they meet, but it's those who're the most vocal who stand out. I'll base it on the individual, and let them show themselves one way or another whether they fall into the generalized category or not, but if I know I'll be talking to someone from the bible belt, I'm going to have a few generalized expectations to start with; they may or may not fall under those expectations, and I'll leave that up to their own actions to display, but I am actually racist because if they DO try to convert me on the spot within minutes of meeting me... I'll have actually been kinda halfway expecting it, and won't hold it against them as much as I would other people.
As long as yeu have any 'possible generalities' of any kind, even if yeu don't act on them, and leave it up to the individual, as long as yeu are capable of making a pattern, there's at least some degree of racism in there. It's just not a bad thing like the term implies at all. Our capacity to survive depends upon being able to quickly size up those around us and make evaluations rapidly to keep us from getting into massive trouble; physical appearance is one tool we have at our disposal to try to do so. If we didn't try to quickly categorize people, we'd never get anything done, or if we did, it'd be disasterous.
If yeu see a mexican person, do yeu tiptoe around the topic of illegal aliens? Or try to avoid the topic altogeather? Yeu've just assumed they may have a strong opinion on it, BAM yeu're racist right there. Did yeu avoid saying a joke yeu thought was funny because yeu thought they might be offended? BAM racist! How about just idly wondering if yeu should mention yeu're going to taco bell for lunch and asking if they want any, or if they'd take it poorly, or if yeu should just treat them like everyone else? The fact that yeu even considered this at all... BAM racist.
It's not bad, it's how we survive. If yeu are politically correct, the mere process of being so is racist, sexist, etc at it's very core.
Being sensitive to another's race or gender IS racist/sexist, only by treating someone EXACTLY THE SAME AS EVERYONE ELSE REGARDLESS OF THE FALLOUT, can yeu not be racist. If yeu call a woman "hey man", yeu're probably going ot get in trouble for it (I do this myself though, and have gotten called on it a few times, I just use 'man' as generic statement don't ask me why I don't know XD ) but it is actually less sexist than calling her 'maam', which implies yeu think yeu should think of her differently than a man.
In short, yes, yeu need to do it. It's not a bad thing. If yeu didn't, yeu'd be incapable of any social interaction at all.