A number of phrases for addressing the reader or including the reader in your discussion are given in the PhraseBook. These include:

Addressing the reader

Consider, for example, …
Now consider the issue of …
Note that …

 

Using we to include the reader or audience

As mentioned above, using we to include the reader or listener is common in textbooks and teaching:

What can we say about …?
What does this tell us about …?
This brings us to the question of …
Let us now examine the question of …

 

Other ways of including the reader

What is the explanation for this?
How might … be explained?
One might ask, for example, whether …?
It should be noted that …
It is important not to overlook that …