Which Extra-Curricular Activities Should I Do?

I am currently a Sophomore, and I want to major in either political science or economics.
I am extremely passionate about law and politics, and I love debating.
Any advice on extra-curricular activities I should do?
I want to make myself look as unique as possible.

Which ones are you interested in?

Debate/ Model UN / Mock trial all sound like good fits.

“Unique” has never had huge appeal to me personally, unless your interests actually are unique. Unique activities for the sake of padding a resume have never made sense to me.