My tip is how to use silent shooting mode to be able to blend in the environment that you're shooting in.
Sometimes I'm in different situations where I don't want people to know that I'm taking their photo.
This happens quite often in the subway or 
maybe when I'm shooting private events.
Just the shutter sound is kind of distracting, so I usually shoot in silent mode.
On my a7r III I have it set up in C2 mode.
I just press it and it quickly goes to silent mode.
So the way that you can setup this on your camera is going on the custom key settings on the options
and then you're gonna find the custom key and you can pretty much set it anywhere you want.
I like it here because it's just one touch away.
The next time you're out there shooting, 
but you don't want to be distracting,
just switch to Silent mode and 
I promise is gonna make a huge difference.
