Hi Sarah,
I know when I went full time I was very self conscious. I look back on it now and think to my self no one really cared except me. Yes, it is different but it is just a part of you and not the whole you.
I think being comfortable with yourself and friendly make a difference. Like others said self confidence and being who you are and what you are representing is what the meeting is about.
Where I work non-essential workers word off site or are no longer working. When on site we are 6 feet apart and wear masks. Other PPE is used for more in depth work. I do not know your company policies but everyone wears a face mask. I stopped wearing makeup because of having to wear PPE.
Good luck, you got this.