Social skills are essential and it is often necessary to train in order to react in the best way to certain difficult, stressful situations such as a job interview, dating. The best way of training for these challenging interview situations is to role play with actors, capable of simulating emotions, but this solution is not affordable for most schools and universities. We therefore propose TGRIS, a Teacher-Guided Realistic Interview Simulator that allows students to practice interviews with an emotional virtual agent in Virtual Reality. Most importantly, this tools allows teachers to create custom interview situations by changing the agent's face, emotional state and piloting the agent's verbal and non-verbal reactions during the interview. Finally, we discuss the first experimentations and show how this solution might turn out to be better than live actors.