Grammar question

what's the difference between "in the way "and "on the way"?

policies for happiness

what are the policies for being happy? 

Are you living in a happy country?

As long as I'm concerned many things like  climate , culture ,work atmosphere , your friends ,and even small things impact on you to be happy or not.But when it comes to being happy its all depend on you. In my point of view people can be happy even in difficult situation but I know its certainly hard!

I will be glad to read your comments:)

English and French

Have you ever had an experience to learn two or more languages together? 

I want to learn French but I don't know whether it's good to learn English and French at same time.Is there any link between this two languages? 

Don't judge a book by its cover

What is your idea about this sentence?"don't judge a book by its cover "

Do you think it's true ?Can we judge people from their appearance ? 

How can we use new vocabs while we are speaking? I'm learning English for about four years.I learn many vocabs and expressions and idioms and so on but actually I can't use them while I'm speaking.I usually use some simple words when I'm speaking.please help me that how to use new expressions instead of old words.

what are you doing when you are sad?:(

I was so sad today;when I'm sad I write my feelings in a paper and after that I put the paper away.i think talk with some one in this situation is good too . but I can't  say my feeling to my freinds.i have a lot of friends these days but I don't have any real friend in fact.