He listens to you
The best way to know if Mr. Next is interested in (and worthyof) being a candidate for Mr. Right? He listens to you. You'll know he's listening when he shows genuine concern, consistently remembers things you've told him (your birthday, favorite food, best friend's name, etc.), and offers emotional support in honest and thoughtful ways.
认真倾听
要想知道你的下一任是不是有兴趣(或者值得)成为你对的人,最好的办法就是看他是不是会听你说话。他如果真真的表现出关心,你说的所有事他都一直记得(像你的生日,你最喜欢的事物,你最好的朋友的名字等),并且能真诚而周到的给与情感上的支持,那就表示他确实在倾听。