There are three levels of willingness to forgive others:
(1) Some people forgive anyone who wronged them if that person comes over and asks forgiveness.
(2) Others go out of their way to meet those who wronged them to make it easier for them to ask for forgiveness.
(3) People on the highest level explicitly state each night before they go to sleep that they forgive anyone who insulted them, even if those people will not ask for forgiveness on their own.
Sources: Eikev Anavah, p.58; Rabbi Zelig Pliskin’s “Gateway to Happiness,” p.307