General terms:
* Non-listening
* Passive listening (although this can sometimes have a different meaning, implying genuine but not active engagement)
* Inattentive listening
* Pretend listening
* Superficial listening
* Half-hearted listening
* Fake listening
* Absent-minded listening
More specific terms:
* Stage-hogging (when someone only listens to respond, not to understand)
* Selective listening (when someone only pays attention to certain parts of the conversation)
* Monopolizing (when someone dominates the conversation and doesn't give others a chance to speak)
The best term to use will depend on the specific context and the specific type of pseudo listening you are trying to describe.