The knowledge of the issues connected with pedestrian can be very helpful in the proper desing of buildings or other facilities. A simulation should take into consideration both, normal as well as evacuation conditions. Over the recent years several models of pedestrian movement have been created. The first part of the article contains a brief review of some available models. Then, the author proposes a model of pedestrians group dynamics in normal and evacuation situations. A 2D Cellular Automata, multi-agent model is created. The model proposed takes into account some strategic abilities of each agent/pedestrian. In the model, all decisions are made by an agent in correlation with other agents.