Yes, I got to know a lot. Mostly Polish where I was (Edmonton). They were very nice and would share drink between us all if they had any. We would share drink and tobacco with them.
I was robbed by other homeless, so I wouldn't say they looked out for us. I was homeless with my ex, so I had someone looking out for me.
There was no council who could help. I had gone to the library and posted that I was homeless, so a friend who was in NZ, got in touch with Streetlink. They came and found us, but because we had not been in any borough for 6 months, they couldn't help us.
I was never attacked. Just abuse about being scum etc., but never attacked. Apart from one sort of turf war, where I got mouthy with a group who had a dog shitting in the park area I used to sleep so they pulled a knife on my ex.
The police were fine and would just tell you to move on if you were sleeping outside an establishment that reported you (Tescos), or if you were begging (I had a sign and just sat on the street reading as it was humiliating). You constantly had to keep an eye out for them as they'd move you and it was horrible. The police were sympathetic.
Parks police had a card they'd hand out with agencies who could help, but we didn't qualify for any help. Police were dumbfounded really. They knew us well and their main concern was us drinking alcohol in the park.