I think that the fact that you are dreaming about someone you know more likely indicates that you are thinking about him and this shows that you may be missing him. If you are in good terms with someone there is possibility of missing him or her.
No, it would rather be the opposite. If a person shows up in your dreams, it means they have significance to you, and you want to be more with them. If it's your crush, it means you want to let him/her know about how you feel.
Yes i think it is true because when i like someone very much and when the person shows up in my dream by that time he/she also miss me-if somehow he/she understand the fact or my feeling that how i react.
Maybe false reasoning and a slight ego that a dream has anything to do with the other person and how they feel, sorry to say. If you want to know how to interpret the dream there are lots of experts out there. I like Dream Moods A-Z Dictionary. It's probably not a dream about the person, it's about the behaviors or images you recall. If that certain sombody is standing in a dead forest, it's probably not a good sign. If they smile at you from a field of flowers, you probably like them or miss them. It's about you, not the other person, I believe. If you had ESP, you would know it...he he he.
no. because everyone you have ever seen, their faces are stored in your head meaning that you have hundreds of thousands of strangers who could be anyone in your dream for example the person who won a bronze medal in your dream could be the construction worker that hold a stop sign in front of your mothers car when you were six