If you want to rank your fiver gig and if you want to get more orders you should select the best keywords for your service. The best way you should see others top rated or first pages gig and they see their gig keywords after that select best one for your Gig or category. For example, you are a web developer and you want to sell your service about web design. so you should use keywords like Webdesign, website design, WordPress, blog site, eCommerce website this is just for an example. You should research your keywords at first then use all keywords on your gig description and in your gig Tag. So I think this another one best Fiverr tips and tricks for all Fiverr sellers.