As a Verb or Adjective:
1. To pretend to feel a certain way about something, especially interest or amusement. English = dissimulate, humour someone, feign interest.
Interactive:
1. Used alone to tease or mock your addressee. You express a kind of mock disdain at them because you do not think they have been as clever, witty or original as they assume, especially if they are getting at you in some way.