Yes, please consider three ideas.
First, you can be aware of what I call “teachable forgiveness moments.” For example, suppose you are watching a film in which revenge is occurring. You could ask, after the film is over, “How might the story have continued if the one on whom revenge was sought decided to forgive and then seek justice in a reasonable way?”
Second, you could have a regular conversation, say once a week, at mealtimes in which you ask, “How did it go for you today? Were there any challenges? Did you consider forgiving under those circumstances?”
Third, you might consider sharing your own experiences, at least on occasion, in which you had to forgive someone at work or in some other context. The point is not to pressure family members to forgive, but to show them the way by your example.
Learn more at Family Forgiveness Guidelines.