There are many different sexualities in the bisexual umbrella. Damn this is going to be hard haha. Please correct me in the comments (please no arguments about whether bisexual is two or more, or two, or if polysexual is three or more or anything like that.)

This font looks really weird when I'm typing in it. Never mind. Okay, so:

Bisexuality

This one is kind of obvious. It's in the name of the umbrella.

I feel like my writing style is so different now welp.

Bisexuality is when you are attracted to people of two genders. Although it is commonly used for male and female, it can be for any two genders.

Polysexuality

Polysexuality is when you are attracted to people of three or more genders, but not all. Is that enough description?

Pansexuality

Pansexuality is when you are attracted to people based on their personality. Aka you're gender-blind.

Omnisexuality

Omnisexuality is attraction to all genders. Although it's similar to pansexuality, you are not gender-blind in this case, and you may have a preference over different genders.

I've had a brain fart I can't think of anything else I'm sorry! Leave some more in the comments and I'll do a part two!