Remember that categories are misleading. So question your categories.
- Look for differences within groups.
- Look for differences across groups. Do not assume that what applies to one group also applies to another.
- Beware of “the majority.” Ask whether it means 51 percent, 99 percent, or something in between.
- Beware of vivid examples. They might be the exception rather than the rule.
- When something looks strange, be curious and humble.