And when I do this type of active/passive energy sensing people may or may not feel like there is an overwhelming presence nearby, not necessarily bad but definitely hard not to feel.
And at most I can extend the circular radius of sensing to over 300 miles though that takes a little time to do so, and have been gradually increasing that distance a little more each time.
I have been practicing energy cultivation for almost 20 years and have been extremely empathic which does get annoying sometimes because sometimes I can't tell if the emotions I am feeling are my own or someone else's emotions, as well as have been able to both see and feel energy since I can remember, which is about when I was 6 turning 7 anything prior to that I can't really remember except for an anomalous weird flashback that I cannot really explain very well nor does it make much sense to me, well as of yet.
As well as I have been able to make my energy visible to anyone though it does take a little extra effort on my part and helps if the weather is warm because trying to focus when one is cold is rather difficult because one is also trying to fight the cold as well as trying to focus energy not a really effective mix :P
Though depending on if you have to sense things with line or sight vs area of effect or a circular radius of roughly 100 feet or so. I can sense some things from about 1mile or more away, depends on how I feel that day and my degree of awareness at that moment.
Though I can sense people hiding behind or in things so mine is mostly the area of effect sensing which is harder to sneak up on people who have this type vs the line of sight sensing of people.