The number one thing you need to know is that Jesus did not celebrate Easter.
It may not have been called Easter, but He certainly did celebrate that day. In the morning, He visited His friends Mary Magdalene and the other Mary, later that day He joined two of His disciples on the road to Emmaus and shared a meal with them when they arrived there, then that evening He stopped by and visited His disciples and dined with them, eating some baked fish in front of them.