Congratulations! 🎉
I'm the same. I have had five (I think) boosts. It's a nice feeling. But, I didn't do anything different. I don't know why those pieces were boosted over any others. And, for the most part, it didn't make much difference either.
That first one — doled out when the program was new — was a sizable bump in my earnings that month; it's still my biggest earner ("What Is Woke?").
However, none of the others made a substantive difference in earnings. I did gain what seemed to be a few extra followers and engagement from them. Still, getting the Boost does feel good.