This is an interesting question. Let me make a few comments that will help you with the idea of social awareness.
First, literary texts and plays can be complex and very creative. Therefore, there is not one way that the theme of social awareness is presented. So, it is important to have an open view on how themes can be presented and developed.
Second, perhaps the clearest way that social awareness is expressed is when the main characters of the play say so. The author has the ability to directly speak about topics through the characters. If there is a narrator, the same effect can be established.
Third, another way that this can be done is through the opposite method. In other words, by showing the evils of not being aware of social awareness, an author may underline the importance of it. This point can be made in a satire. Moreover, this can be very effective, as it might grabs people's attention.