how i concludes on 
someone you've never met before is introduced to you at a work function. First impressions always come with a few snap judgments, but are yours generally racial in tone? Do you assume things about the person based on skin color? That's a racist tendency.
- Racism isn't limited to judging based on skin color. If you make judgements based on someone's attire, accent, hairstyle, jewelry, or other aspects of their appearance related to their race, those judgements also fall into the racism category.[1]
- The judgements you make can be positive or negative, but in either case they are racist. Whether you assume the person is funny, sexual, scary, or any other quality, it's still making a judgement based on a stereotype.