Does it ever make sense to judge a book by its cover — literally or metaphorically? Tell us about a time you did, and whether that was a good decision or not.
Literally, I do choose book by it’s cover, I would scan the books on the store and look for the one with interesting cover design. Then I would read the synopsis behind the book. I do find similarities of my method in finding friends, I would scan for the one with less negativity (think of complaining all the time, always late, really lazy, etc.) I also find people with bad marks tend to be problematic as well, people with good marks are trying to do their best in tasks while lazy people repeatedly get bad mark (maybe it’s only my observation though).
Despite the bias there might be in my method, it served me well in the past and I believe the same for the future. Stereotype happens for a reason. In a normality curve, most people (67%) fall within one standard deviation and 93% fall within two standard deviation, so most people we encounter are normal with few people in the extreme side.
Avoiding problematic people lessen my problem as well, as I found problematic people tend to drag people around them down as well.