It is never safe to look directly at the Sun without specialized eye protection for solar viewing. It is best to use ISO 12312-2 international standard Eclipse Glasses or Handheld Solar Viewers.
Eye Safety for Total Solar Eclipses
Below are some helpful tips to follow during a total solar eclipse.
During a partial or annular eclipse, or during the partial phases of a total eclipse, the Sun will still very bright. If you are watching an entire eclipse, you may be in direct sunlight for hours. Remember to wear sunscreen, a hat and protective clothing to prevent skin damage.
Here are some helpful tips for navigating large crowds.