Except when He doesn't.
Read the Book of Acts, for instance, and it's clear that Things Happen when the Holy Spirit shows up.
- Yes, the sick are healed.
- The dead are raised to life.
- And sometimes, the healthy are smitten with sickness -- or even killed!
Like Jesus Himself, in other words, the Spirit exists to make somebody else look good . . .
Even if this means He needs to make a scene.
Go, and do likewise.