WHITE LIGHT SHIELDING
This is a great ritual for empaths to do before going into crowded, public, or dense places. (Or really anywhere.. 
)How to create the shield:
Concentrate on calming your energy. Find a quiet place (alone if you can) then close your eyes and take (at least) 3 deep breaths-in your nose, out your mouth, in then out, in then out. Imagine a white protective layer of light surrounding and wrapping around you. (You can imagine an egg cracking on your head and slowly covering your entire being, maybe it's a ball of light and you are inside the egg/circle, or even stepping into a light filled elevator.) Allow your intuition to guide you to whatever is the easiest way for you to imagine this bright, beautiful light surrounding your entire essence. This exercise is all about intention, so be sure to focus your energy as such. 
Bonus: You can also add a mirrored outer layer along with the white light shield. This reflects back out any negative energies that might have been sent your way. If you choose: Send it back with love and light, so that they may see the way of love.
Bonus-Bonus: You can also light wrap your house, car, belongings, loved ones, pets, etc.