Guru Purnima is a usually celebrated in India. It is celebrated to honor and pay respect to the your guru or spiritual guide. Hindus also celebrate it in honor of Vyasa who is seen as one of the greatest gurus in ancient Hindu tradition. Floral offering and symbolic gifts are given away in his name.
One way to celebrate Guru Purnima here at home is by writing a letter to someone who has helped you on your spiritual path or lighting a candle in their honor.
Write something about yourself. No need to be fancy, just an overview.