Fair question! I would not necessarily have mouse in that list. But I do write down more than just proper names.
One thing I can say it comes with practice. You'll develop your way of spotting keywords.
I usually note specific names like "phonetic approach" or "spectral range", or "space dust". I also note superlatives like "most efficient". Some words act as red flags that something important is coming like - concluded.
Maybe this approach works for me so well cuz I used to skim a lot through various texts while studing at my university and reading bunch of books with lots of blah, blah
Also sometimes my notes won't have the answer but for me it is much quicker to get back to the place (and I'm gonna know were it is by looking at keywords) at find the answer in a text then to read everything and try to remember it...cuz i know I won't remember every detail... but that's for me.
So note that I don't say that this is "the only" right method. There are others that might work better for you. Like Gin's RC strategy where you read every word...
So try and see what works for you. Good luck on mastering the RC!