Isabelle made it to a finals match once, so she may be a little popular, but she does her best to present herself in a way where she doesn't stand out all that much. She is barely aware of just how many people know who she is, and until very recently, she was under the assumption that she didn't have fans. The first time one approached her, she would have been shocked and enthusiastic. It would be incredibly awkward. It also made her day, and maybe made her feel a little better about herself. At the same time, she suddenly became aware of how many people know about her existance, which only introduced another source of stress into her life. Isabelle doesn't like the idea of having fans, but she doesn't hate having them come up to her. In general she is kind and welcoming towards them. She would happily take pictures, give autograph, etc. to someone that enjoys seeing her fight. Although, this is still a rare occurence due to her efforts to stay out of the public view. If a fan started to get a little weird around her, she'd politely excuse herself, but wouldn't hold it against that person. If she met a fan that was really strange or obnoxious, she could use her semblance to leap far away from them and be done with that. Luckily, that hasn't been necessary at all yet. There's probably some fan activity online, but she has no clue. She barely knows how to work her scroll, so the chances of her coming across any of it are slim.
Lyssa finds it repetitive and annoying. Being a fourth year student, she has had more than her fair share of encounters. She doesn't really want or need fans, so she has no problem acting in a way that would make her look bad. By now, she has earned a reputation of being unapproachable (and kind of a huge jerk), so they don't often come up her. For some reason, there are still people who seem to like her, and they do occasionally walk up to her in public. Her use of the internet is pretty basic, no social media. It's easy for her to avoid it online, but not when she's minding her own business while out in the city. If they're just saying hello, she'd be somewhat respectful as long as they don't try to stick around long. If they try to have a conversation, it wouldn't last for a minute before she either leaves, tells them to get lost, or begins to ignore them. Any faunus would get a particularly dismissive attitude, and her patience would be a bit lower. At this point, most people get the hint and leave her alone. Those that don't will very quickly get on her last nerve. Nobody has stuck around long enough for her to really blow up at them, but it's definitely possible. Currently, she's working on getting less aggravated by all of it, part of her half-assed efforts at becoming a better person. Lyssa knows that if she doesn't get over it, she's going to have a hard time as a Huntress.
Vivian thinks it's great. Without a doubt, she would have the biggest fanbase out of my characters. Not only is she very popular, but she is very welcoming to her fans. Her prosthetic arms make her stand out and her fighting style is simple yet flashy enough to impress, especially when incorporating her semblance. More often than not, Vivian loves meeting new people and is exceptionally kind to anyone that approaches her. Even the ones that get a little too excited don't really bother her. She does her best to make them happy. Unfortunately, this does mean that she also has to deal with total weirdos now and then. Anyone who gets too creepy for her to remain comfortable will get a polite verbal warning, and if it still goes beyond that, she'll let them know with a hard squeeze from her metal hand that they should stop whatever they're doing. That usually ends the situation, and if it doesn't, they're going to get bounced in the opposite direction. She would be kind enough to use her semblance and put a bubble around her fist so her punch just knocks them on their ass, rather than breaking a rib or two. Auraless peasants and what not. That's the worst that she has dealt with in person, but there's a plethora of strange things involving her on the internet. She does a perfectly fine job of ignoring that side of her fanbase, but given that she's the one character I have that would actually use social media often, she occasionally sees things that she would rather not. These types of encounters and weird posts usually don't have much of a lasting effect on her, and they don't make meeting the normal fans any less enjoyable. She does have a hard time dealing with big groups of fans running into her and taking up her time, but it doesn't make her very upset. After a while, she has started getting used to it. Seeing their excitement is a lot of fun for her.
I'm in the process of rewriting Cassidy, so I'm not as sure, but I imagine he'd have a good amount of followers. He's a very feminine guy, and a lot of people probably find him cute. He sees a decent amount of fan groups, both on the internet and in real life. He is open to interacting with any individual who knows him, but he avoids spending a lot of time at any gatherings or public events to avoid groups of fangirls coming his way. He's not shy and is friendly, but too much attention at once makes him unable to think straight, and that is something he can't stand.