Actually i must object on this, maybe yes its true muslims do it but its not in Ýslam to do it

Ýts kind of tradition, culture thing.

Ý remember when i was younger i was against it, i thought no one should kiss hands of other human, because ALLAH the one who give not the human.

But by time, and watching how younger people lack the respect which they should offer to the older ones.

Ý appreciate this tradition much now, and wish it spread in here as it used to be.

 Yes CANLI , completely agree with you : kissing hands is not in Islam - I think because it is a gesture of superiority vs slavery - like in a Monarchy: kissing the hand of the king or queen..

I watched some turkish drama in Tv and noticed that the younger one´s kiss the hands of their elder relatives (fathers, mothers, in-laws...) and then touch the hand to the forehead.  this is ok, i guess because it is a gesture of respect and being polite...  even though it was rooted to the Pasha´s era, when they used to kiss the Pasha´s hand...

Hey, if they don´t want their hands kissed, then they will let you know. I´m fine with hand contact, hugging, etc. I´ve seen some muslims here that won´t shake your hand or get near you, from Turkey.  

What if you are an american christian, then what do you do?

you have to kiss their feet as well, if you`re an american christian. that`s the cost of being a bed american.

mine was the mother in law from hell

 I was in a rather remote village in the south of Morocco, where the children had a rather complicated ritual of hand kissing, which ended up on the forehead.

This was reserved for respected guests and from younger to elder. Seeing as Morocco had nothing to do with the Ottoman Empire, it would appear it doesn´t have anything to do with Pashas or Turkey. From my impression, it has to do with respect and showing honor to elders.

 I would strongly suggest making sure you get along with your in-laws, no matter what culture you are in. They can make your life HELL is they don´t like you or your spouse. This goes for any country....NOT just Turkey.

 This made me laugh a little.....you still need to observe the customs of your fiance/bf/husbands family if you wish to be a part of it.  I have never had a hard time with my Turkish in laws and I am bed American/Christian. 

Hey, if you´re an American christian than just grab them and give them a big, old fashioned american hug. You know, in a way, I do find it kind of rude when I just meat someone, here in America, it´s customary to shake hands and If they don´t, it can be considered offensive. I´ve let it go, but I´ve seen some Turkish people here who are more offended than I am by the no hand shaking.