What would the bogart look like if....

it would make the other people 'disappear'.
like the person could only see themself

Well idk, mabey they wouldent be able to see eachother. oder mabey the bogart could just give off this feeling of being alone

Well, Du can be in a room FILLED with people and still feel completely alone. So it probably wouldn't look like anything, it would probably make Du feel alone like on the inside.