Both are understood but the most conversational statement would be: Who are you talking about? In America, 'About whom are you talking?' would not be said often.

A person who is 'living on the edge' is usually referring to a person who is drawn to or is constantly in a dangerous situation. A person who skydives, wind surfs, in a violent gang or has a career with a lot of danger. But it can also refer to a person who is living with bad decisions....doesn't pay bills, is a drug addict and so on. These people are closer than usual of falling off the edge of a cliff because they live on it. :)

ポストカード or ゆうびんはがき

This is difficult to answer without more context but I believe 'tipping' in the sentence is used to mean 'to leave'. There is a term called "tip toe". If you imagine a burglar sneaking around your house stealing things he is trying to be quiet by walking on the tip of his toes. Your sentence makes me think the group had decided to leave a function early and when they got there realized that if they were to leave early it would be too noticeable or hurt someone's feelings. So they are reexamining the plan to leave early.

Hello Jade, Since John has answered your question already I will help you reword your questions in to more natural sounding English =) A: English is so hard for me. Do you think I will ever become fluent? B: With lots of hard work you can do anything! (I am not quite sure what you are asking here so I will give a couple of examples) A: He is so nice! Are you in love with him? B: Yes, I can't help it. He is perfect! A: He is so nice! How could I not love him! B: I know! he is great! A: He is so nice! Now you see why I love him. B: You're right. The two of you seem so perfect together! A:This has been the worst time of my life. Why do you think those guys treated me that way? B: Those men are bullies and dangerous. We need to call the police, I am worried about you. A:He will meet her soon, that will be so much fun! How do you think a shy guy like him will feel meeting such a beautiful girl? B: I think he will be embarrassed, but she is nice and patient so I am sure it will work out. ((((They do not mean the same. 'How do you think I love you is not said often at all in modern English)))) A: I have always been that serious (about you). Don't you know how much I love you? B: No, I thought you didn't want a serious relationship. (((((Again, 'How do you think I miss him' sounds a bit strange and is not used in Modern English. It does not mean the same as 'do you know how much I miss you.)))))(((((With the length of 1 year you can just say 'a year' this means 1 and sounds more natural.))))) A: I haven't seen him for nearly a year. You can't believe how much I have missed him. B: No, but I can imagine! It's been so long. or A: I haven't seen him for nearly a year. Do you think he's missed me? B: I bet he has thought about you every day! A: Don't pay attention to what he said. He is always so mean! Do you think what he said was (only) a joke? B: Does it matter if it was a joke or not? It was really mean either way! Hope this helps :)