I was in a car with a few friends giving directions to another car that was supposed to meet us. The driver of the other car had a little trouble understanding

I was in a car with a few friends giving directions to another car that was supposed to meet us. The driver of the other car had a little trouble understanding the directions I was giving and asked if we could switch to English. No problem. I can give directions in English as easily as in the local language. When we were off the phone, my friends in the car remarked with astonishment that I seemed like a different person in English. At most one of them had any English proficiency but they certainly noticed that my manner had changed and my personality seemed to follow. My ex-wife mentioned the same thing. I don't notice it because I'm always the same person, subjectively experiencing the same reality. Evidence indicates, though, that I do have a different personality in English and Spanish.