Hi folks, just getting started with the latest version of Kali. I don't want to steal anyone's password or view their personal data, I'm just interested in gathering the following info -

a) What times of day they use their wi-fi connection
b) Bandwidth usage

If I did want to hack/crack someone's password it would be relatively easy, because most of the tutorials I can find relate to that topic. Anyway, Kali linux has a ton of programs and I'm having trouble with so many options. I have a USB wireless adapter, one of the Alfa models which is suitable for passive info gathering and hacking techniques.

I'd be very grateful for some advice on where to start!