always be cool.
it doesn’t matter what strangers think about you. they don’t hate you, they don’t love you, they don’t really care what you’re doing. if you talk to them maybe they’re friendly, maybe they’re weird, maybe they’re Brazilian, wealthy and on a three year trip around the world. you can think this stuff all day and it’s all wrong anyway.
you can’t control who they are and what they think, but you can control yourself and your thoughts.
if you’re cool with yourself, they’ll be cool with you. that’s the operating assumption at all times. always be cool.