I have a question regarding the verb pattern [ Sit / stand / lie + expression of place + gerund ].

In my English book (Mac Millan Open Mind upper intermediate level) I've found some examples explaining the lesson, and this one was one of them:

E.g. "The crowd just sat listening to the music all afternoon."

It does not use the expression of time. I found it a bit confusing since it has already been explained in the lesson that these verbs follow this pattern: [ Sit / stand / lie + expression of place + gerund ].

Some presumptions: 

Is it because we can understand easily "the place" from the context or because after the verb sit we use gerund usually ( which has no relation with the lesson)?