What software can add your favorite stickers to the video to keep following the head?

On the home page of the Pro version, click to start creating.

Then drag the video material to the video track.

Then on the toolbar, select Stickers.

Options.

Then select the face-blocking sticker, here choose the face-blocking cat or dog, click the + sign to fill in the material.

Then adjust the size of the sticker until the face is completely covered.

Finally, adjust the sticker duration to be consistent with the duration of the video clip.