I came across this and I thought ... "This deserves comment!" So ...
1 Call who calls you ie - reciprocate! If you like something that was done for you, return the favour
2 Ignore who ignores you
mmmm.... this rule doesn't allow for contacts that you wish to encourage
...............or contacts that are shy or lacking self-confidence
3 Forget who forgets you
gee ... this is a bit harsh! What if life is very busy? The person hasn't necessarily forgotten you.
4 Love them who love you
Yes .... Yes .... always