For the family member that purposefully pushes each of your buttons.
For the broken friend that speaks harshly in every circumstance.
For the co-worker who irks you.
For the neighbor you try to ignore.
For the person you struggle to love.
Pray for them over and over and over again. Pray for their day and their heart and their circumstance. Pray for their joy, their holiness, their faith. Pray for God to give you His eyes to see them, and His heart to love them.
Prayer may change them, but it will absolutely change you.