This won't work out in the long run. Overtime, people will get close to him again and view you as instigator.Build rapport with the rest of the office and form your own clique. Then get ur clique to isolate him.
I see before the whole department form a clique and just isolate this one guy. the guy looks damn malu and sad everyday eat alone during lunch cos nobody jio him while everyone all leave in groups.
Not really leh.This won't work out in the long run. Overtime, people will get close to him again and view you as instigator.

Don't rah, later he got clique ome then make your life difficult how?In my workplace, I encountered one colleague, he is from other department and doing different role than me one. I don't even know him at all, but when he initially talk to me already start to crack very crude jokes and insult me. I felt very offended but I just laughed it off at that time.
Although I am entry level fresh grad holding executive position only but in my mind I "mark" him liao.
Give me some ideas what should I do with this colleague in the future?
Only in sinkie workplace will have workers advocating suffering in silence. In amdk countries, their HR takes workplace bullying seriouslyDon't rah, later he got clique ome then make your life difficult how?
Just let it go, let it go~