Faction Armor & Relationship

[Albert]

How can I boost the relationship with a faction. I noticed when I complete the tasks, it doesn't boost the relationship.. When I joined the westerlands, my relationship didn't improve as much. Apparently you need to have 80+ to get a faction armor.  Can anyone help me?

Thanks.

[Tages Grey]

The fastest way to do it is to come to aid of that faction units and lords units in battle which will give you +4.