If you want yo get positive trust ratings, first of all, establish a service which you can offer to others. It's up yo you can buy/sell stuffs, have a lending business, escrow services, running a campaign, or even offering you talents. Then let the rest happen naturally, hope to God that you will get one soon .

Simlly because you can't please someone to give you positive trust as this is a form of begging which violates the rules of this forum (don't you dare hehe). But don't worry too much, as long as you are having good attitude and transparent all the time ther members would be willing to give you one. Keep patiently waiting.