Activity on the DB and what it can do to points:
Upvoting: Receiveing gives you 10 points, giving does nothing.
Downvoting: Receiving decreases your points by 10, giving decerases by 2.
Best Answer: Receiving gives you 20 points, giving gives you 2.
Flagging/Hiding/Showing: Do nothing.
Editing/Retagging: Do nothing.
Approving/Rejecting: Do nothing.
Answering: Does nothing.
Asking: Does nothing.
The above counts for all members of the site (that includes you), though you need privelages to do some of the above.