Alignment reflects what others think about Bishop 6. Positive alignment means they like you and/or approve of your decisions where negative alignment means they dislike you and/or disapprove of your decisions. By default, you cannot see alignment changes--they happen in the background. If you want to see the alignment changes, you can enable "Show Alignment Changes" in the game options.
Group Changes[]
These are changes occur as a function of major plot events and how Bishop 6 responds to them. They generally apply regardless if you've had a conversation with them.