>>13601729try to dress well, get a good looking haircut, shower, speak loud and clear and smile when you speak or try to approach someone(practice it in front of a mirror first though)
If you speak to a stranger just remember that most people will react in a familiar way and Its almost like speaking to a family member
If you fear that people will try to pick at you just be better than them, or atleast make it seem this way
If you start to dress classy and look good you can feel the strangers being more open and helpful
good luck man