Which term refers to those who wait on the sidelines during a mob situation until they feel it is safe to join in?

The term "yielders" specifically describes individuals who observe a mob situation from the sidelines and wait until they perceive it is safe to participate. This behavior often signifies that they may have an inclination to join the group but lack the initial courage to engage until the situation appears favorable. This idea captures the essence of individuals who are not actively participating in the mob's actions initially but are willing to join in if the circumstances change, reflecting a certain degree of hesitation or apprehension about how the mob dynamics will unfold.

In contrast, concerned citizens are typically those who may feel a sense of responsibility to intervene or assist, rather than waiting to join. Encouragers actively support and promote the actions of the mob, while instigators are individuals who initiate or incite the mob's behavior, often leading the charge rather than waiting on the sidelines. The nuances in these roles emphasize the distinct behaviors that can be observed in a mob dynamic.