Presentation skills Johannesburg courses training are not formal at all. What a person wears is not as important during a casual presentation as it would be during something more formal. This is because these types of interfaces are, inherently, informal affairs. Most of this type of presentation will occur in a T-shirt and jeans or some other casual wear.  It is not recommended to walk around in rags or old clothes, but a suit or business wear is not, by any means, required. Knowing how to dress for different situations is still an important presentation skills Johannesburg courses training. Just because it is not the focus of this particular type of interface does not mean that it is not important to be aware of how to dress. Knowing how to dress in a casual setting is as simple as throwing on whatever presentable clothes a person has accessible or obtainable to them at a given time. Rehearsal, a staple of many presentations, is not needed either. This is because these sorts of presentations are as-is. They are on the fly and so there is really no way to prepare for them (other than simple being used to speaking to people). Presentation skills Johannesburg courses training such as rehearsal are important for most formal presentations and it may feel strange to think about talking to random people on the street as a presentation. That said, they are presentations and they should still be treated as such.