Females can have some fantastic colors, too, and they have the same level of personality as the males. Their fins are just shorter (but to a lot of people, that makes them nicer to look at, as they aren't weighted down by excess fins and unable to move around freely). But anyways, short fins don't always equal female: many male plakats have been mistaken for females.
With females, too, you can start up a sorority, have 4 or more in one tank (starting with a 10gal, preferably). Some girls can be aggressive and have to live by themselves in a smaller tank, but most do get along and a group of them are great to look at. All my bettas, male and female, have always peckered away at the eye dropper I use to distribute brine shrimp and bloodworms. I started laughing the first time the group of females, who had just gotten used to their new home here, all descended (or is it ascended?) to the eye dropper and began battering away at it. Give them enough time and I'm sure they'll eventually knock it out of my fingers.
But absolutely no males with females, and no males with any other males.