I suppose not, for your first question, as long as it's genuine. I don't know if it would be as genuine if the person knows, but if you feel confident that it will be enough then you may tell them.
As far as different people are concerned, it isn't necessary, but I thought it would be easier.
text;
As far as different people are concerned, it isn't necessary, but I thought it would be easier.
[Poor Newt, though... Delight really needs better taste in friends, apparently.]