And frankly, you don't even need to say anything at a 'reading'. If you said nothing apart from hello and 'no thanks, I won't have a cup of tea', and then just sat in silence, a good cold reader could make lots of deductions about your accent, age, place of origin, level of education, social class, marital status, likely income etc etc, and tailor readings/'predictions' accordingly.
The one time I went to a 'psychic' at my sister's instigation was (not surprisingly) when I was at a very low ebb, temporarily disabled by an accident and living with my parents back in my home country, on benefits, scruffy, overweight because I couldn't exercise, and probably visibly unhappy. My reading was all about how I would get better, move in with my boyfriend, be financially ok, start a business and have a baby immediately, and that (I asked) I was finished with education and would never live abroad again.
Within a few months I won a major PhD scholarship to a prestigious UK university, have a professional career, and have never since lived in my home country but in several others. My partner and I didn't have a baby until 16 years after that reading, and neither of us has ever had a business. She was giving me what she thought was a happy future for someone she perceived as 'local', working-class and down on their luck, based on the visual cues I was giving off.
Interestingly, my very groomed, poised younger sister, who saw the same woman within a few weeks of my visit, got a very international, high-flying, glamorous 'prediction', based on her appearance and manner - she still lives in our home town and has been dogged with considerable financial and health problems, and works in a crucial, but very gritty, field.
And honestly, it depresses me every time someone claims they know someone a well-known Snopes hoax happened to. How credulous can you get?