Look at unknown people with kindness and neutrality, like you would look at your future doctor.

It is important for us to maintain peace and balance, ethics, aesthetics, decency… Until you see for sure that the person in front of you is an asshole, give him some trust, at least a little.

But never fully believe in anyone. Most people are stupid, lazy and selfish after all. Always keep your privacy and personal security at a reasonable level, especially today.