Create a social profile if you don't have one
This is the first essential step - create your business's social profile. By all means of course you already have a personal Facebook page which to link your business profile, and you can learn more about creating one by going to Facebook Help: https://www.facebook.com/business/pages/set-up
You can worry about creating accounts for other networks (Twitter, LinkedIn, etc.) later.
Study the competition
Look up your competition on Google, and their name should popped up. If they have a website, open it and study the content. Jot down your observations, and could be anything from "why is their website banner pixelated" to "what content management system are they using".
Create a Google Analytics accounts
Google Analytics allows you to track whatever traffic that's coming into your web assets - i.e. website and social media accounts. Analytics is crucial too because it allows you to quantify, for example, your page's bounce rates, and use the data to strategise and improve your content.
Write down your goals
Sounds cliche, but ultimately, you need to set both your short- and long-term goals. What do you want to achieve tomorrow? How do you translate page clicks into sales? How do you boost visitor retention on your website?
Write a blog
Blogging is a strategy used by many marketers to get more brand visibility, and help drive traffic to your website. It's also a way to tell stories to your customers - and talking from personal experience, blogging isn't just about hard-selling your product. Blogging also helps your brand gain trust and credibility.