There is a ritual of cracking the eggs before the Easter lunch. Each
person selects his egg. Then people take turns tapping their egg
against the eggs of the others, and the person who ends up with the
last unbroken egg is believed to have a year of good luck.
The traditional Orthodox Paschal greeting is: "Christh Has Risen!"
The answer is: "Indeed He Has". This is the greeting during 40 days
after Pascha. As you can see the Bulgarian Easter traditions are a
version of The Orthodox Easter traditions.