Hi, Angel999!
I think we can all feel the "energies" from other people, but are often not aware of what we're picking up. I'm struggling here to recall the details; but there was a story I read about ('tis something to do with John Cleese!) in which they had a whole bunch of strangers arriving at a hotel for a self-awareness self-expansion type stay. The first exercise they were asked to do, was to walk around the room (no-one allowed to speak at all, or introduce themselves in any way), and then put their hand on the shoulder of someone they felt some "affinity" with.
After a while, the people there had divided themselves into little groups of 3, 4 or 5, but left in the middle were 3 people who couldn't find anyone. It turned out that there was a major similarity in background between those who had grouped together. The three who found no-one had a more unusual background, such as being raised in care. It seems that we all know more about each other than we think, before we begin to communicate. I'm afraid I'm terrible about forgetting details on these anecdotes, I tend to just remember what I learned from it!
And so: to develop it. Some years ago I had a friend who was very gregarious, loved meeting lots of different people, and introducing people to people! (Actually she's still a friend, I just don't get to see her these days.) Anyway, she had a habit of asking me for my impressions of people I'd only just met (being fascinated with both intuition, and understanding people). She would say, "So, what did you think of so-and-so?" and I'd say, "Well, I didn't really get a chance to talk to them at all." To which she would reply impatiently, "Yes, yes, but what does your
intuition tell you?" And I would find to my surprise that I could relate quite a few impressions when she put it like that.
So I would say, get yourself (if you are not already) into a position where you have a chance to meet lots of new people; then take some time on your own to consider each one, and write down what impressions you got, 'cause I think the more you think about it, and pay attention to it, the stronger it'll get. Of course, it's even more helpful if you get a chance to see more of them later, and find out how accurate your impressions were. It helps to know which bits you misunderstood when you consciously analysed them!
All the best,
Tish