Be friendly. Assuming that someone wants to connect with you allows you to be more open and friendly toward other people. While it's true that no matter how friendly you are, some people will respond as if their mouth and mind are perpetually soured, this isn't a reason to scuttle off or blame yourself. After all, you are not responsible for the behavior of other people. They could have a difficult background or they might be having a bad day. Either way, it's not a reflection of how you are as a person. By being friendly you will put others at ease, find ways to break the ice, and give others the freedom to be more open and vulnerable around you.
