Generally these type of work meetings involve a group of people sitting around taking it in turns to speak. Most people anxious about speaking in public dread their turn and hope some divine intervention will save them from having to speak at all.It's a type of panic attack.
To get around this try the opposite approach. Pretend to yourself and the group that you are actually dying to speak. Before you enter the room, say to yourself:
“I’m going to speak at any reasonable opportunity that presents itself”
-Be positively itching to speak!
-Before the meeting kicks off, talk to everyone around you. Don’t sit there in silence.
-If you have a short presentation to make and you don’t like the idea of having to do it in one go, break it up by asking those present questions during your talk. This puts the focus back on the group and can help you feel less under pressure.
-If everyone has to speak, it can really take the pressure off to be first up but if you can’t be first then start asking questions of the other speakers when they are finished if that is appropriate.