Much of my work over the years has developed the premise that women's styles of friendship and conversation aren't inherently better than men's, simply different.

When did the word 'compromise' get compromised? When did the negative connotations of 'He was caught in a compromising position' or 'She compromised her ethics' replace the positive connotations of 'They reached a compromise'?

Communication is a continual balancing act, juggling the conflicting needs for intimacy and independence. To survive in the world, we have to act in concert with others, but to survive as ourselves, rather than simply as cogs in a wheel, we have to act alone.

The Pavlovian view of women voters - 'plug the words in, and they will respond' - sends a chill down my spine because it sounds like an adaptation of something I have written about communication between the sexes: When a woman tells a man about a problem, she doesn't want him to fix it; she just wants him to listen and let her know he understands.

A sister is someone who owns part of what you own: a house, perhaps, or a less tangible legacy, like memories of your childhood and the experience of your family.

In a world of status, independence is key, because a primary means of establishing status is to tell others what to do, and taking orders is a marker of low status. Though all humans need both intimacy and independence, women tend to focus on the first and men on the second. It is as if their lifeblood ran in different directions.

If women talk in ways expected of them or project a feminine demeanor, it's seen as weak. But if they talk in ways associated with men or bosses, then they're seen as too aggressive. Whatever they do violates one or the other expectation: either you're not talking as you should as a woman or as boss.

Relationships are made of talk - and talk is for girls and women.

Each underestimates her own power and overestimates the other's.

The biggest mistake is believing there is one right way to listen, to talk, to have a conversation - or a relationship.

For girls and women, talk is the glue that holds a relationship together - and the explosive that can blow it apart. That's why you can think you're having a perfectly amiable chat, then suddenly find yourself wounded by the shrapnel from an exploded conversation.

When daughters react with annoyance or even anger at the smallest, seemingly innocent remarks, mothers get the feeling that talking to their daughters can be like walking on eggshells: they have to watch every word.

Conversations with sisters can spark extremes of anger or extremes of love. Everything said between sisters carries meaning not only from what was just said but from all the conversations that came before - and 'before' can span a lifetime. The layers of meaning combine profound connection with equally profound competition.

A sister is like yourself in a different movie, a movie that stars you in a different life.