How to show my face while presenting Keynote on Zoom

Hello,

I am presenting a keynote presentation for a group of 20 participants tomorrow via Zoom. I included a video of myself inside the Keynote but it is lagging when I record via Zoom. So, now I'm wondering how I can show my face on Zoom while sharing my screen? I can see myself in the upper-right hand corner, but when I tested it with a friend, the participant cannot see me.

Please help! I am simply using a Zoom meeting link.

Thank you.