I don't know if this counts as a proper "ghost" story, I don't even know if I what I saw was a ghost because - and I am not by any means an expert on ghosts, in fact I never even believed in them before - I thought the definition of a ghost was a dead person who's spirit comes back. But I just need to know what people think.
So, today, me and one of my best friends went to a cafe for lunch. We see each other every day and always go to the same cafe so I wasn't expecting anything strange to happen. We were going to meet inside the cafe and she got there first. I saw her sat at a table, alone, on the other side of the room. Just as I looked at her, she saw me and smiled and waved at me. Straight after she waved, a small group of people passed in front of her table so I couldn't see her any more. As I walked over to the table, the group of people who passed in front of her sat down in front of me so I couldn't see her table again. I carried on walking towards her table but when I got there, she wasn't there.
I looked around for a few seconds, confused, thinking I had walked to the wrong table because there was no sign of her or her bags etc. Then I looked all around me and when I saw the other side of the cafe which was at least about 30 feet or so away from me (and to the far left of where I was standing). I saw my friend. She was sat there with all her bags and reading a book.
Her hair was completely straight. When I saw her a few seconds earlier, her hair had been curly (it's naturally curly but she nearly always straightens it). By this time I was scared. I told her everything and she said she had been sat where she was then for about 10 minutes and hadn't moved at all.
Does anyone know what I saw?