first realize that people care infinitely more about themselves and their problems more than what you say/do. lead with appropriate questions then probe further. people will like you more if you seem interested in them and let them talk.
What happened to this place?
Yeah what the hell are they doing on a NEET/hikikomori board asking about how to meet people at school?
Don't go acting like this is new
These posters belong here like bedbugs in a bed