There are people who always oppose you in whatever you say. You can even say something of which they are normally convinced, too, but just because you said it, they need to talk against it. And later, if you stick with your point, if you say why you think what you just said, they also agree. But first of all, they have to be against it. It is just their principle and their way of reacting.
I feel it has something to do with wanting attention. These people need to say something so that everybody, and if it is just for one second, looks at them and listens to what they have to say. But the thing is that if you do this too often, nobody will want to listen to that anymore. Many times I see this and always feel that it just creates negativity. Be positive about things. Think again before you say no. Or better feel again, if you really want to say no.
You know, many people often underestimate others. Don’t think the people around you are stupid. Others can feel who and what you are, even if you try being someone else. You can talk against something and everybody knows that you are actually in favour of it. And you can play another role very well but people will feel that this is not your real face. Be honest with who you are and what you feel, I cannot say it often enough.