I think this woman really has to be joking with some of this. Let’s start with Tip 11: Play with the kids. She thinks it will make you look attractive to others I think it might be creepy to the parents (since you’re a stranger). Then there is my personal fav, Tip 12: Get yourself adopted. – WTF is that? Her advise is to have another couple adopt you for the night. It sounds like she is advising a threesome. This whole thing is weird.
I say if you are single at a wedding, just be normal. That’s all.