856Yc‖Show Comment

czoQU‖Shows the comment of the cell.

To access this command...

ebLJB‖From the menu bar:

mtWsM‖Choose Sheet - Cell Comments - Show Comment

t8dFS‖From the context menu:

FTfs6‖Choose Show Comment.

sXy2C‖From toolbars:

jyafX‖Icon Show Comment

TJFiv‖Show Comment