The latter comes from your social capital with both parties.

Nicholas,Make sure that when your wife adds you to her credit card(s) she makes sure they take your social security number and date of birth. 

I've seen agents from a local brokerage (very active on this forum) using the above techniques trying wholesale properties even though they are licensed. 

Hey BP fam, I want to network in person, like a in-person social gathering- remember the old days!

It makes little sense nowadays as it will all til back to your social security number and you’ll just be reporting a schedule E in the same return if you rent the place in killington at all.  

Although I haven't personally taken this course yet, you may want to consider attending Jeff Otteau's "Advanced CMA Techniques" event.

There are a variety of ways to do this like cold calling, joining social groups, direct mail, knocking on doors, etc.

Does anyone go beyond social media and pay to promote their (personal?)

While there are many techniques out there to invest with very little cash, they are generally more "advanced/complicated" and carry more risk.P.S. 

I highly recommend finding a successful agent that's active on social media, study their content and determine if it resonates with you.