How to use Twitter for your community

This may sound like a silly question, but how many of you use Twitter or other social media accounts to create a community around your startup? I created a Twitter handle and a LinkedIn Page, but I've been so focused on building the MVP I spend very little time on either of those promoting it. What do you do? Any ideas on how to balance that and what to post when?

I feel like I'm missing out on leveraging the capabilities of social media. If anyone wants to follow me so far, or give some feedback, my company Twitter is @dization. My Linkedin is: https://www.linkedin.com/company/dization

Thanks in advance!