If you are going to present bipolar to someone, especially someone who is uninformed on the illness, why not include ALL the symptoms and not just the ones that facilitate the idea that "Oh, he must have bipolar because of X".
I represent the illness in all its forms when I discuss it with people. If someone feels like their loved one or friend is afflicted, we run through a list of common symptoms attributed to mania and the impending depression. What we don't do is state things like, "Oh, he is drunk and acting out, being all sexual. A clear sign of hypersexuality and hence must be bipolar."
This is the issue. If you want to present the illness in a meaningful way, demonstrating what happens previous, during and after an episode, then the people will have a clear view of the illness. To instill this idea that not presenting all the facts around an illness is to snowflake the issue, is completely misrepresenting the population of those who are afflicted.
Let's assume girl in GIF does indeed have bipolar. Let's even guess that she has been diagnosed with BP1 and refuses to take her medication. She gets irritated quickly. She feels as if the world is spinning around her, no escape. The fuzziness attributed with random pattern of thoughts. The careless way she approaches any situation. She's not exactly sure why she isn't happy, but she knows it isn't her fault.
Then she goes out. She meets up with friends who have no idea of her condition. They don't know she refuses to take her medication. She decides to drink shortly after having had these thoughts of grandeur.
The medication she should be taking can help level off her mood, but instead the alcohol (after one drink) causes her massive bouts of triggered euphoric mania. She feels like a queen and we aren't her equal. Drinking just made her feel good about herself and around her friends.
Now she gets into an argument, whatever it is. She decides this other girl isn't good enough for the likes of her, but deep down she knows she should avoid confrontation. She decides to go off and gets kicked down and out.
Now her friends all look at her, having done nothing to calm her down. "She only had a couple drinks, what the hell?" Lightweight. Crazy girl. The video gets online, and goes viral. An animated GIF is made of it and everyone focuses on her being this snotty drunken bitch as I assume she is.
She goes home to people who just don't get her. They just want to dull her down, keep her grounded and off her peak. Why doesn't anyone actually understand her? Why can't they...
Then it hits. It's been a little while now she has felt like this. At first she didn't care about how she mistreated the bigger girl in the video. She didn't care that her little manic episode went viral. But now she does.
Now she sees the reality and it starts to sink in. She feels awful like she does for months at a time. Even with her medication. So she drinks again; that seemed to help last time. So she is now drinking on her downward slope. She starts to feel less than herself, like she is outside her own mind and body.
She clearly doesn't feel like anyone knows her or understands her, so what the hell is the point? Sure, I'll take the medication. Give me all the pills, right now....
...so, that was a story. It was invented for the sake of explaining only one theory of how someone could become manic and have it triggered by something as simple as a drink of alcohol, but the refusal to take the medication prescribed to her.
Again, I have seen firsthand what this fucked up illness does. I don't sugarcoat it, and I explain that after any real manic episode, there is the possibly serious side-effect of suicidal ideation. The thought that you are worth less than yourself. It's something most people who know a little about bipolar have no idea, because it is rarely reported.
Which is why I initiated the conversation(s) with informational links to NAMI and the IBF, both incredibly worthwhile resources. The idea that someone with bipolar could have a manic episode while having a couple drinks is very real. But it is also even more real that the person afflicted with it suffers so much that only focusing on the they must have bipolar because of X makes any other symptoms less than worthy to discuss.
While manic, many high-functioning people with bipolar have learned to hone in on their mania and use it to their advantage. Use the restlessness to create works of art. Feel enlightened and if you're going to stay up until 5am anyway, work on that essay you have been putting off because of the constant depression that has hounded over you for 2 months.
Mania isn't all horrific and crazy thinking. It can be used, with proper CBT/EBT, to thrive and become better than you ever expected.
Each story has a beginning and an end. To limit your understanding of bipolar and not offer any advice to those who wouldn't know, is rendering a disservice to the community as a whole. You could simply have answered, being that you've been in the field for 5 years, that although some signs point to mania, there is much more to the illness than a drunk girl causing a scene at an event. You offered no compassion to her, if she does indeed have bipolar.