Quote Originally Posted by Wikisocion
EPs perceive IJs as too predictable and boring, too unwilling to do things on the spur of the moment.

IJs see EPs as unreliable, and too unpredictable in their impulses and initiatives.

IPs see EJs as annoyingly pushy and insistent in their initiatives; they may respect their energy levels but also wonder if they don't see that a lot of that energy is spent wastefully to no good purpose.

EJs see IP as unpredictable, moody, as well as too passive and unreliable, especially if they are required to show initiative or even reciprocity.
If all this is true, how do mirrors work so well? For example, an ESE and an SEI should see each other as the latter two descriptions, which are negative, whereas the description of mirrors is almost entirely positive:

Quote Originally Posted by socionics.us
Partners can be themselves around each other without causing misunderstandings. Partners have a correct intuitive understanding of each other and are rarely surprised by anything the other does or says. Arguments are very rare. They always have things to say on the same topics and easily come to a consensus, but at the same time put opposite emphasis on things, creating a revisionary effect. These relations are highly verbally oriented, with partners discussing their hobby topics (and avoiding most others) and revising and adding to each other's views. Partners tire from the discussionary nature of the relationship and try to separate for work and rest. Partners immediately liven up when someone else shows up who is the dual of one and the activator of the other partner.