How can I speak with confidence in front of a group?
Speak from a place of confidence, by writing down what you want to say, saying it out loud a few times, and speaking slowly. Take pauses rather than fill all gaps, keep both feet on the floor, make eye contact with several people in the room, and decide on the first sentence of your talk. It doesn't have to be a commanding voice or a flawless delivery. Just deliver a clear message, and focus.
How to speak more confidently to a group
When you start speaking, preparation provides a reliable framework. Narrow your speech down to several key takeaways, and consider which of those takeaways are most important for your audience to retain. Rehearse your introduction and conclusion out loud, as those opening minutes can be especially challenging.
Slow down a little bit from how you speak in a conversation. We tend to speed up when we're nervous, which makes our ideas harder to understand. Take a break after an important point or before you answer a question. You don't have to fill all the gaps. A brief pause can help clarify what you said and give you a moment to think.
Keep your voice at a level that is comfortable for you yet still carries throughout the room, so that you don't have to yell. Breathe easily and allow your sentences to come to a natural conclusion, rather than trying to push through them. If your voice trembles, keep going at a steady pace and do not say sorry.
Look around at different people in the group, one person at a time, for a few seconds. Rather than fixating on just one individual or keeping your eyes locked on your notes, shift your focus between various sections of the room. This gives the impression that you're connecting with everyone while avoiding the need to maintain direct eye contact at all times.
Maintain simple and meaningful hand movements. Allow your hands to relax when they are not doing anything. Do not walk back and forth without purpose. If you forget where you are in your speech, stop, glance at your notes and move on. People usually care more about what you are talking about than whether or not you made a little mistake.