show hltv membership pass
grind matlab and solidwork
tell em ur user name is EdgarAllanPoe on HLTV, a place full of illiterate apes
show your bank account balance
LOL, just do whatever you enjoy for a longer time than most people. Don't worry about what to write now...You'll get in top20 schools, don't worry.
Of course, make sure your academics are perfect (or as close to). If schools think that you aren't ready to succeed in university level courses, no matter how good your extra-curriculars are, they would remain extra-curriculars only (exceptions national/olympic level athletes or sportspersons).
Volunteer work for church or community