I'll answer your question asap! What was this about? Was it an accident?

Im a girl and I was at a job and a colleague I had never met before came up to me and said she checked out my picture on a website before the job and I think she said it was pretty. A couple of nights later I was at a club with a bunch of other people from the same company and she was there as well. I walked over to the bar by myself and I was bent over leaning across the table to order my drink I felt someone feeling me up like touching my but maybe it was an accident. It was like she was grazing her hands in that area as she walked past. Was it an accident? or deliberate?it was for about 4 seconds and then she leaned over the bar with me