The phrase "איש לרעהו ומתנות לאביונים" translates as follows:
"Each person to their friend" – referring to the mitzvah of Mishloach Manot, the sending of gifts of food to one another on Purim.
"Gifts to the poor" – referring to the mitzvah of Matanot L'Evyonim, giving charity to the poor so they can partake in the joy of Purim.
These actions emphasize generosity, community, and helping others, especially on the festive holiday of Purim.