The tag reads in French a casual "for You". If you feel compelled to make your own and need a little formality write "Pour Vous" instead. As this card is for a family member that would be a little much! French is very specific when it comes to addressing people formally, it's a great relief living here in the West not to have to worry about such things. When the height of polite address is adding Ma'am at the end of a sentence you know you are most likely on safe grounds anytime.