He can be quite standoffish and rude, even to his friends.

他有时会很冷淡，很粗鲁，甚至对自己的朋友也是如此。

《柯林斯英汉双解大词典》

If you want other people to be nice, friendly and fun in meeting you, do the same. If you take this attitude, it doesn't take long to realize that the cool people aren't arrogant or standoffish.

如果你想别人和善，友好幽默的与你结交，如果你采取这样的态度，它并不会花去你很长时间去意识到冷酷的人并不是不友好或傲慢的。

youdao

Offering a handshake alone could be the different between appearing standoffish or sincerely friendly.

是否首先想握手能看出一个人是冷淡的，还是真诚友好的。

youdao