Positive feelings and positive thoughts will display a totally different feeling than negative ones. I firmly believe, and know, that you have to choose the energies you surround yourself with, especially friends like Marie Callas, although I have not met her in real, I have always felt peace when I write to her.
Where I have become discerning is in the tight inner circle, surrounding myself with like minded, positive, ambitious people. These friends enhance my life and help me to be a better person, in all areas of my life, which is where I strive to be.
I am, and always have been, sensitive to other people's energy. I try to cultivate it to make it better. Anyone can stimulate and encourage this sense, simply by trusting and listening more closely to that inner voice. I feel women are usually more sensitive in this sense, that's why people say we have sixth sense.