There is more than enough to occupy your attention when delivering an important presentation. Let’s add one more.
If you are standing in the beam of your projector, then you are in the wrong place. If the projector is shining in your eyes, it is not projecting onto the screen. And your audience will not be able to see your slide. That sounds simple enough but I have seen this error committed over and over again, often by presenters that should know better.
Stand to the side. Check out the room and your presentation area ahead of time. Determine areas where you can stand and not be in the beam of the projector or within the line of sight for the audience to see the visuals. Physically stand in those spots to see how it feels to present from there. Make sure you can see your laptop or monitor. Now remember where those spots are.
These are your safe zones. Stick to them.