Purposeful movement

So I keep hearing the phrase "move with a purpose". I thought that I understood what it meant, but I guess not because I'm still hearing it (from the same very helpful college official not multiple officials). It seems pretty self-explanatory but can anyone offer any examples?

When I'm L & the ball enters my PCA, I open up & mirror the ball... thoughts?

When I'm C & the ball is opposite, I generally take a few steps onto the court & up or down a couple steps from the FT line to get the best possible angle... thoughts?

When I'm T, I work the arc for the best possible angle (at about the 3 point line) I close down on shot attempts & make sure the defense has posession before transitioning to new L... thoughts?

After a foul is called, I hustle when switching. On dead balls I try to look alive. I don't know what else to do that will make my movements appear more purposeful.
I'll be working a couple of 3 person games with this same official tonight.

Any feedback would be greatly appreciated!