Make a video.
Lol, I made a video about my gig and in the first day I got like 12 orders. Because if you make a video, then the people at fiverr will give you more exposure for your gig.
use fiverr messaging bot in download section. you can mass message customer from other seller offering your gig services
BE very very careful with that. I almost lost my huge account with that on Monday.
Was able to get them to unlock my account.
With over 500 orders it is not something you want to play with.
Lucky for me I came up with a twist on my gigs to turn $5 orders into $15 so
I only need 1/3 the orders to maintain my $$$$$
Actually Very Simple. Just don't use it at your MAIN account.
If its something reasonably unique then just sign up to a ton of new accounts and buy your gig with them, and leave feedback.
Costs you a $1 for each positive feedback.
Also spam your fiverr account on FB/twitter etc as mentioned.