
definition of bisexuality is being attracted to men and women and pansexuality means gender doesn't matter (men, women, transgender, non-binary, genderfluid etc.) however nowadays they're like the same thing because generally people say that they're bi even if they're pan since it's a more popular word and people know the meaning so they won't have to explain it. lol actually i did that a lot too but now i just say i'm queer because i dont want to label myself.

Bi sexual doesn't just include men and women (and trans) but its more than just two genders bi referse to liking 2+ genders, pan sexual is the exact same thing but they just don't see gender ad a factor in determining someone they like. I personally don't like putting labels on sexuality like that but that's my opinion. Just know that you don't need a label to be valid. Hope this helped

Basically in a sense, they're practically the same terms as one another; bisexual meaning being attracted to more than one gender and pansexuality meaning being attracted to someone regardless of gender.
It just comes to whatever title you prefer but one false saying for the two is that the difference is that you can't be attracted to nonbinary and trans individuals as bisexual which is why pansexuality was made when that is inherently inaccurate and also makes pansexuality a way to view bi as transphobic (when it really isn't)
Both terms go hand in hand and you can use whichever. Personally, I like to reference myself as bi since its a more comfortable term for me and my interests fluctuate which can be a normality for people in the bi community.

Since I am pansexual, I might be able to explain it. Bisexual means u can like and have sex both genders. But pansexual focuses more on ur like than gender. For example u might wanna have sex with a person of same gender cause u like them doesn't mean u can have sex with any person of the same gender. Let's say u r a girl and u come to like a girl one day and think it's fine u r with her but that doesn't mean u r okay with doing it with girls or that u like girls it's just that u r okay with doing it with the person u like.
When do you know that you are either pansexual or bisexual? Just that both of them can do it with either gender right, same and opposite sex.. but what differs them both?