#K2984

Can some one tell me why my Chinese friends always reply me some ‘special unknown’ words? Like `walao eh ‘, `gnncb’, OR ‘niaseng’???? And some times I can heard that when they are talking…
I had tried to ask my Chinese fiends before, they just say it’s like ‘thank you’ and `I love you ‘or’ amazing ‘, like that. I felt that the Malaysia Chinese friends was so friendly and nice before, but when I was stay longer time in Malaysia about 1 years, I think that’s not true!!!! Because I had tried to ask and use these words to my lecturer and some others Chinese friends in the club, they always give me an angry and nausea face….
I’m loosing now, some one can comment here and teaching me? Thanks a lot!!!