<p>Like SandwichGirl said, the only way to go is to become skilled in those areas.</p>
<p>You can’t stand out in your activities if you can’t do them as well as your competition. But once you become a fluent mathmatician/pianist/chess player, you can consider how far you want to take those passions.</p>
<p>Do you like math? Excel at math competitions (I suggest reading "The Art of Problem Solving) and get active in your school’s math team. Don’t have one? Establish one and become the chapter president. Have you considered tutoring in math? What about hosting a citywide math comp for smaller kids, then donating the fees and funds you collect to charity?</p>
<p>As for piano, I do not know your level of study, but have you considered auditioning at a music conservatory (if you live nearby)? Studying and performing at a professional conservatory will open up a whole new door of opportunity. However, if you don’t feel comfortable (or ready) enough to play in public, this development might take many years of intensified study. </p>
<p>I am not familiar with the activities that relate to chess, but I love your idea about teaching kids afterschool. Becoming a chess master however, will takes years, if not decades, or training and practice. On the other hand, even if you aren’t a nationally renowned chess player, you can always be creative with what you do by sharing your passion for chess by teaching younger kids.</p>
<p>Congratulations on finding things that truly interest you. Many of the students at my school will never find out what they enjoy because they are too busy stacking their applications with twenty clubs and ten sports they don’t care for. If you are a rising sophomore, keep working to improve in your fields of interest. Even if you feel that you aren’t a concert-level pianist, or you aren’t yet a math whiz, if you apply yourself and be creative with your passions, you will stand out from the thousands of application-padding college applicants every year. </p>
<p>Bottom line: don’t purposely TRY to “show colleges that you’re passionate.” If you do, you run the risk of appearing too packaged and ill-reasoned in your choice of ECs. “Passion” will come naturally if you truly follow your interests in math, piano, and chess.</p>