This experience, I can honestly say, was the biggest one I've ever had.
It was last December during my freshman year (I'll be turning 16 this October) and the day right before vacation started. I had been dating someone I easily connected to at the time, and it was around our one month mark.
She always wore this necklace with her, practically 24/7. I didn't really know this at the time since I just met her in my freshman year. So, after school, she took it off and put it around my neck, saying she wanted me to wear it for vacation since she was going away and I happily agreed.
It was only after the first 10 minutes of wearing it that I started to feel differently (keep in mind I've never experienced psychometry before this). It was as if she was clearer mentally somehow, I can only compare it to adjusting the focus on a camera lens to make it sharper rather than a little blurry. I have been able to sense other's emotions well before, but hers was as if I could touch it as it was just so vivid.
Her emotions jumped out to me. I could tell instantly what she was feeling. And then I got an image in my head, of an aura. I've never seen auras before, but I just knew it was an aura, her aura. It was two different colors, orange and gray, and I could see detail in it.
I didn't tell her any of this yet as I was freaked out myself. I went home an hour later and then I got an image in my head of a room in a house. It was literally as if someone snapped a photo and put it in my head.
Her sister was online, so I started describing the picture in my head and she got freaked out. She said I was describing my girlfriend's friend's house exactly. I even saw the texture on the couch, the color of the rug and the dimness of the lighting. I asked her where my girlfriend was, and she told me she was at that friend's house at that exact moment. I've never been to her house, so I had no idea of knowing what it looked like. It was as if her necklace was a living connection between us.
I had another, dimmer image of being outside near a doorway and described it in detail to the sister, to which she confirmed also.
Her friend was freaked out because she knew I had never been in her house yet here I was describing it to her, and she had scientific beliefs and didn't really believe in things like that- but I was forcing her to question it by what I'd said.
I wore her necklace for a week during vacation, but that was the strongest day where everything happened. After that, I didn't get anything else. I've tried with other people's necklaces, but I never got anything so I have no idea how to control it.