Determining your brand and story
Understanding your purpose and vision will allow you to understand your brand. Your brand is the story you want the world to see. Therefore, if your vision and purpose are not clear, it will be challenging to figure out your online presence/brand. Most people who lack vision have a social media feed that looks like an unchaperoned child in a candy store. That child is going everywhere, high on life with no path or reason. In the world of social media, more postings are not always better. Instead, the post/content should be brand-focused and consistent.
Think of your feed as a personality, and that personality is driven by what you feed it. Many people will evaluate you by your feed. Let me ask you, what do you think when you see someone who is posting cat memes, ice bucket challenges, and occasionally save the alpacas? I am certain your first thought is not, "Wow, this person is really knowledgeable about InfoSec. I would love to ask them...