which the more effetively?

ClixSense does not rent referrals.

Yes, ClixSense has not rent referrals.

In order to progress your balance, you just need to:

1. Click at least 2 PTC Adverts of any kind;
2. Click at least 20 ClixGrid squares. The more you click the more chances you have to win ClixGrid prizes which will
then be counted towards the bonus as well (for example as a Premium member, if you earn the $10.00 prize you
will earn an extra $1.20 with the Daily Checklist bonus at the end of the day);
3. Because not everyone has offers or tasks available to do, and to give everyone a chance, you are required to
complete only one of the following:
- Complete at least 10 CrowdFlower Tasks; *
- Complete at least 2 offers from the offers page (except video offers); *
- Complete at least 5 CrowdFlower Tasks and at least 1 offer from the offers page (except video offers); *
4. Visit at least one page of our forum. Posting is not required.

Good luck!

upgrade vs rent ref = upgrade (no rent ref @clixsense)