  In this paper, we present a set of simulation models to more realistically
mimic the behaviour of users reading messages. We propose a User Behaviour
Model, where a simulated user reacts to a message by a flexible set of possible
reactions (e.g. ignore, read, like, save, etc.) and a mobility-based reaction
(visit a place, run away from danger, etc.). We describe our models and their
implementation in OMNeT++. We strongly believe that these models will
significantly contribute to the state of the art of simulating realistically
opportunistic networks.
