my suggestion is don’t do something as a gimmick. Do it bcos you generally care. In such cases, it will become part of you.
Again, EC’s don’t much matter. H is just not gonna are if you teach for TFA, join the military, tutor the underprivileged, work to reduce bullying, work to prevent domestic violence, or get a job working retail at Walmart. (you’d be surprised what you can learn about others while working retail.)
As long as you do something important to you (while studying for the LSAT).