There are some general steps to take to enhance your level of "executive presence," says Harvard Business Review.
"Executive presence is not an innate quality; it is a set of behaviours that you can learn over time. Whether you are a natural wallflower or a social butterfly, you can enhance your presence by doing the following:
Focus and relax
Calm is the foundation of presence. Use your breathing as an anchor that you return to when you get stressed or start to lose focus.
To change your behaviour, you need to know how you are perceived. Pay attention to how people react to you and ask for candid feedback from those you trust.
Practice with support
Telling a colleague or mentor you're working on presence can boost your skills and confidence. The feedback you receive can also reinforce momentum."