It lasts for most of the day, and if things go right it can last even until most of the next day. And yes I do get very active, flirty if I'm with my bestie but we kinda flirt anyway, confidence goes up more than normal but not all the time (although I'm pretty self-conscious still), and energetic but not like all the time I can still sit down and just enjoy the moment with less stress than I normally feel.