Does she still want me to kiss her?

me and my sister and this girl i dated went to a fall festival and we were sitting on some hay bales and this little boy kept saying that i like that girl and that if i kissed her then he would quit saying it and the girl and my sister had their backs turned to me and i couldnt see waht she was doing so i kept saying no and the next day after the girl left i asked my sister what she was doing when that boy kept saying for me to kiss her and my sister said that she kept smiling and i was wondering why she was smiling