HOLLA ON THE GO: A weird vibe and a creepy phone message

I was sat on the bus on the way home from work and felt a guy sit on the seat across the aisle from me. I picked up a weird vibe from him but I didn’t look up because I could sort of tell that I he wanted me to somehow? Anyway after about 10 minutes he taps me and passes me his phone and said read this I glanced at it and read enough passed it him back and he said no read it or I can read it to you so I took the phone took a photo passed it back and gave him a dressing down so everyone saw.