Invest good quality time creating each of the content material you may on every, e.g. text, images, video etc
Consider what keyword phrases you want to target and contain them inside the business description and key phrases
Never (repeat never) copy and paste your business description into each and every free directory - generate fresh and unique content on each and every one
Look out for upgrades to priority listings and links for your website - try to remember acquiring a hyperlink to your business website is important
Superior luck available, and bear in mind, while the old saying 'content is king' was true inside the final decade, I assume it is evolved to 'quality content material is king' in today's data rich world.