As a project manager, you are responsible for ensuring that the team you are in charge of reaches the project goals. This puts you in a managerial role even if you are not actually authorized to issue directives. However, you will find it difficult to manage your employees if you are not convincing in your management role. With the following 3 strategies you will show that you are a charismatic manager:
Show your presence in other management groups.

1. Gain access to management meetings
   Say that you need information for your project or that you want to report on your project. At least have your name added to the distribution list for the respective minutes. Then your name appears among the high society.
   
   
2. Use other managers' rules of play
   Every time you come into contact with line managers pay attention to how they act, their presentation, how they speak and how they dress. Adapt. Make sure that you do not act like a foreign body when you are among managers, look as if you belong there.
   
   
3. Get yourself status symbols.
   Observe which symbols other managers use to make their status clear. Request status symbols from the customer of the project that you are not actually entitled to in your official position. Use plausible arguments why you need these status symbols, with reference to the project – the customer will find it hard to refuse. Your employees will be impressed if you are able to get these "trophies". These symbols could be a company parking spot, not having to clock on at a fixed time, budgets for food and beverages, or certain access rights to the PC systems.

If, as a project manager, you use all the strategies and actions described in this article, you will see that people listen to you and that you can manage successfully even if you are not authorized to issue directives. It is important that you are self-confident as a manager and that you convince others with your competency.

Source
DIV Deutscher Ingenieur Verlag
http://www.ingenieur-verlag.de