research your keywords properly and chose most searched keywords according to your gig. Try to keep your gig marketing regularly and be patient never lose confidence.
You need to marketing your gigs. For less marketing your gigs impressions are zero. In my opinion marketing your gigs in various platform like twitter, linkedin and also email marketing if you know lead generation. Also choose best and most searchable keywords for your gigs and make a clickable thumbnail for get more clicks.
It's totally depend on your gig rank and how professionally you describe your gig for impress the clients. There is no specific days to get order some time people get order within 15-20 days some it take 2-5 month to get order on fiverr.
Research keywords and choose the best keywords for your gigs. Then offer something unique to buyer so that they came to you and order something form you. Also SEO your gigs properly.
Research keywords vary carefully and choose the perfect keywords for gigs. Now you placement keywords in your gigs title, tag, description, FaQ and gig image SEO. Also SEO your all gig images properly.