Hi Amy

Thanks for your response..
She was holding the phone at such a tilt as the lens was pointed in a direct line with my face. It looked an unnatural way to be holding the phone other than positioning it to take a snap. Plus her facial expression, it immediately sat with me - that gut instinct you get of "what was that about, she did not just do that did she...?"

I had to think quickly so I decided to say nothing as it was too late. If I asked she would simply deny she took the photo (awkward) and I wouldn't be the sort of person to start demanding that she show me her phone.. so I said nothing, but as I said, I'm 99% sure of my instinct she took a photo of me. It's no major biggy, not as if I am a celebrity.. just found it peculiar as to what was the motive..