Men and women think, talk, and act differently - which causes problems for writers who are trying to create characters of the opposite sex. When we understand the difference between masculine and feminine qualities and habits, we can use those behaviors and patterns to create characters who are plausible and unique, but not stereotypical. Writing between the Sexes will help you to identify your own gender-specific behaviors, notice those of the opposite sex, and use both to make your characters realistic and believable.
this is a very short but very helpful. Had tons of specific tips and advice. Lots of concrete comparisons..