If she is wolf whistling....she is a he. But on the odd occasion a female can and will whistle. But if it hasn't took Jo Jo long to get this wolf whistle right then it is more of a chance that she is a he! 
And also Jo Jo as a name can be for male or female!
It looks like you are going the right way with the training! Good Luck!
And also Jo Jo as a name can be for male or female!
It looks like you are going the right way with the training!
Good Luck!
