Im from Spain and i have a situation regarding a group of Morrocans that sit on a bench all day in the small park in front of my house

Among these Moroccans there is an Indian guy who was my colleague in school and is now my friend. One day, i was taking out the trash and he called my name. Naturally i went to shake his hand and speak with him for a bit, but noticed the others looking at me funny and semmed like they were making fun of me.

Then, on another day, while i was taking out the trash again, my friend wasn't there with them and i don't know them. they started calling my name as if to make fun of me. Because of that, i ignored them and went on my way.

Today it happened again, only this time they took it up a notch being more insistent. Ignored them again since they are in a group.

How to deal with them since a direct street fight confrontation doesn't seem like the smartest move since they are 7-9 dudes and i am alone, and they will most likely gang up on me infront of my own house. Police is out of the question too since they come every night to them and they do nothing.

One day they will cross the line and if i have to i will confront them and fight them right infront of my family house. However i wanted to post this so you guys can give some advice regarding the situation *PIC NOT RELATED*