u can sing the card anyway u want to formal: use dear and sincerely Friends: hello and your friend
Generally the women sign the cards so it is appropriate to sign it (example) John and Jane. If it's extremely personal then the male counterpart should also sign the card.
You should put a khanda(which is the Sikh sign) on it (:
YES unless they're too small then you should sign for them
In a Sympathy Card let the verse do the talking and you can just sign it or add that you are there for them if they should need anything and then sign it.
love (blank)
yes
there should be a sign stating that a friend is trying to video chat with you
Then you have a very good friend and you should remain current on your car note. Should you fall behind and negatively affect your friend's credit, you may lose your friend.
Warm wishes, (sign name) or best wishes (sign name)
your first name and last name and sometimes at a thoughtful message
Depend on how long they have been dating