Before and after the totality, same rules apply as always—if you don't have solar filter glasses (and lens filters on any cameras), don't look at the sun. But

Before and after the totality, same rules apply as always—if you don't have solar filter glasses (and lens filters on any cameras), don't look at the sun. But once the totality starts in your location, you can pop off the filters/shades and look with the naked eye. Just be sure to put them back on once totality is just about over!