When we like to live in a neat and orderly place, we keep our house clean all the time. 

If we don't mind how we live though, but care about how we want others to think we live, then we tidy up and put everything in it's place when we're expecting guests, but probably let things be when we don't expect anyone to come knocking on our door.

In the first case, our locus of control is internal.

In the latter case, it is external.

We take the same approach to our goals. 

When our goals are arising out of how we want our life to be all the time, we approach them very differently than when our goals are arising out of how we want others to see our lives as being.