Wise words to us all from Luke Jackson, a 13 year-old with Asperger Syndrome, who has written a book full of information and advice for teenagers with the condition called Freaks, Geeks and Asperger Syndrome.
The following is from the section on dating (p176):
If the person asks something like 'Does my bum look fat?' or even 'I am not sure I like this dress' then that is called 'fishing for compliments'. These are very hard things to understand, but I am told that instead of being completely honest and saying that yes their bum does look fat, it is politer to answer with something like 'Don't be daft, you look great'. You are not lying, simply evading an awkward question and complimenting them at the same time. Be economical with the truth!
Link to more information and extracts from the book.