You acquire possession of "that" stopwatch. How do you utilize it?

I’m referring to the stopwatch in the episode, A Kind of a Stopwatch from the 1950s/60s TV series, The Twilight Zone. You click it, and time stops for everyone, except the person holding the stopwatch.

So, ignoring the circumstances under which you got it, what do you do with it, once you have it? And keep in mind that you can move objects (and people) around, without the living items knowing that they are being touched.

Just a fun hypothetical situation to toss around…