How exactly is "keep to myself"?

[xyzzzz]

One day I was talking to a friend about why I dont get many approaches as he though I'd get.He said that I "keep to myself".I think, I do everything every normal ppl do. So what exactly is "keep to myself" ?

He is the kinda guy that will get to know everyone in his class or a huge sports club.Yet he said he is still "shy".To me I dont chat with classmates (in university) unless necessary(like we have a discussion),since we dont know each other.But I always think it's normal cuz usually no one comes up and say"Hi what's ur name" etc.

Therefore I dont make friends everyday.And when Im meeting a friend's friend,also it's not like after 10 sec we will become "BFF" and talk nonstop,not that easy for me.And I sense they are not that keen to be my friend either.But I also think it;s normal? Cuz they dont lack friends anyway..So maybe after two or three times hanging out we become closer or we never bond at all.Everything is spontaneous.

So I don't know.He said he had no problem making friends.Do I have a problem? Am I actually wrong about the things I think are normal?Am I too cold? Or ppl are cold to me?

[greywolf]

It means you're more reserved and don't really open up to people very much. There's nothing wrong with that. Some people are friendlier than others and can easily make friends while others can't. I don't make friends very easily either.