You need to be open minded because those that will give you a couch to sleep on might not be as you. [ they give you shelter and food but might be a lot more different that you ].
Be prepared for anything.
DO NOT, I repeat DO NOT leave matches / lighters unattended because there might be kids who can play with them and start a fire .. I had this issue with some ^^
Best to keep your money on a card and don’t keep a lot of money in your pockets. [ you don’t know who you can come across ]