I live in Maple (Vaughan) which comprises mostly of Italians however it's still quite diverse in sections. On my street alone, homes are owned by Asians (Chinese/Indians), Europeans (Italians/French/Russians), Middle Eastern, and South American families. While the whole street doesn't mingle with each other, the neighours are mostly super friendly. My closer neighbours (Brazilian, Russian, Chinese, Indian) and I have drinks/BBQ together in summer. Our kids go to same school and play together at the park and each other's homes (PS4, XBOne). I hand out sweets to my neighbours at Vaisakhi+Diwali and they do likewise on their special holidays.

I believe we should make a better effort of communicating with the neighbours instead of just waiting for the "other party". It is certainly a 2 way street where we can try to bridge the gap by responding with more than just "hi". That applies to both sides.

Just to provide my 2 cents, which you may not agree with.