Give Money to Beggars (dar dinheiro para mendigos)
Now you can give some money to the bum. When he passes near you, then you must aim at him (there should be no weapons in your hands) and press G. You will hear gratitude in response. The mod is well integrated into the game system.
The modification requires: plugin CLEO+ (CLEOPlus). The latest version of CLEO+, you can find here (clickable).