How many UC activities should I have to ensure that my application stands out in a competitive landscape? Is there a specific number that institutions like the University of California consider optimal, or does the emphasis lie more on the quality and relevance of these activities? Should I prioritize a diverse array of pursuits, or is it more advantageous to delve deeply into a few select interests? In navigating through extracurricular engagements, what balance should I strike between academic clubs, community service, and unique hobbies that showcase my individuality? Moreover, how might leadership roles influence the perceived value of these activities? Are there particular types of experiences that can amplify my profile in the eyes of admissions committees? Ultimately, how can I gauge the effectiveness of my current portfolio of activities to align with the expectations of the UC system, while also remaining true to my passions and aspirations?