Log into your ClixSense.com account. On your main screen once logged in, you will find your own personal referral link listed. Send your referral link to potential referrals. If a new customer is brought to ClixSense.com through your personal referral link, you are credited with that person as a personal referral. You are then paid a percentage of any advertising that referral does on the ClixSense.com Advertising system.
Advertise your referral URL on other PTC networks or ad networks. Some members have reported great success with adf.ly or linkbucks.com.
You should also visit our forum as there are some great posts on how to get referrals there. Try to be creative in your promoting efforts and try to promote where you think others are not currently promoting ClixSense.