Passive exclusion may not be intentional or malicious, but rather a result of implicit bias, or an assumption about who should be included or excluded, making their concerns feel small and unimportant, when we fail to include them in conversations, social gatherings, or activities, or fail to invite them to participate in events or groups. By communicating that the whole issue is “micro” it might express our opinion that this matter is not something very important. So, when we are talking about the “micro-aggression”, we actually address and mean subtle acts of exclusion.