Okay there are 4 steps in total to do this.
Note: my humor is broken i think
Step 1
Lay on your stomach on the beach like you lay on bed
Step 2
Wait until the sunsets
Step 3
Just when the sun is about to dissapear stand up really fast (don't complain about orthostatic hypotension or feeling dizzy)
Step 4
Boom! See the sunset again for the second time
Conclusion
If you did not get sand on your chin then you probably did not do it correctly.