If I had a dollar for everytime my mom told me "head's up" I would be a very rich woman. It is her way of saying, "be careful, look both ways before crossing the street, pay attention to what is going on around you." It is classic for me to hear this as I leave the house. In addition, it has been the departing line to goodbyes we have said over the years at the airport, when I left for college, or over a long distance phone call.
Even if I have previously mentioned it, I will remind the reader that my mother is the owner of a successful home daycare. Working with kids all day provides a host of stories, but I recall one in particular Mom told me some years back. A cute boy of about 7 years, A.J. (name has been changed) was someone my mom would refer to as "wango." (More on that later!!!!) That is, at times he was a little distracted, maybe even a little dopey. As all the children would hold hands and pay attention just before crossing the street, mom wanted to be sure A.J. was alert.
"Head's UP A.J.!!"
I never said he couldn't follow directions. Little A.J. immediately stuck his nose in the air and started out across the street. He did exactly what he was told...he brought his head straight up! Mom caught his hand in time in the midst of laughter. She held on to it as the crossed they street.
=)
Picture credit www.bbc.co.uk/.../ansell_direction.shtml