Me and my friend were waiting on another friend near Buchanan Galleries when a busker came over to us and started yelling at us in a foreign language. He reached for my phone and was waving his hands about very aggressively. We are both young women, 22 and 19, so it was quite scary. We hadn't even acknowledged him. He was playing an instrument over music. We didn't do anything to make him come over, he came over unprompted, and I'm not sure what he wanted but it seemed like he was demanding money or something just because we stood nearby him, like 10 meters away. I got a photo of him to warn other people as he is probably a regular at that spot or around Glasgow. He wasn't even speaking English so we had absolutely no clue what he was on about either.