A really nice article :)

I liked the article, Thanks (:

I listen to "english we speak"  very useful podcast.

Also you can learn a lot of idioms from TV shows and talks.

Awesome article.

Some of these expressions are quite similar to Portuguese (at least pt-br ^^)

-Skin and bones - Pele e osso (Esse cara é só pele e osso)

-To keep an eye on - Ficar de olho (Você pode ficar de olho na panela para mim?)

-To cost an arm and a leg - Custar o olho da cara (Esta camisa me custou o olho da cara)

-To give a hand - Dar uma mão (Você pode me dar uma mão?)

-Behind someone's back - Pelas costas / Por trás (Ele estava agindo pelas minhas costas)

Here goes some of other body parts idioms that I konw:

• The rule of thumb: A general or approximate principle, procedure, or rule based on experience or practice, as opposed to a specific, scientific calculation or estimate. (The rule of thumb is the higher the value, the darker the color)

• My hands are tied: The person can't help you (I'm sorry. There's nothing I can do. My hands are tied)

• Give someone the cold shoulder: To behave towards someone in a way that is not at all friendly, sometimes for reasons that this person does not understand. (What have I done to her? She gave me the cold shoulder the whole evening at the party)

• On your toes: To be/get ready to a situation. Many times associated to army ('That goalkeeper is really on his toes.' ' Army Gen.: 'On your toes!!!')

I took this idiomatic expressions from this podcast: http://reallifeglobal.com/real-life-english-podcast-7-expressions-with-body-parts/

I really recommend this website for who wants to learn some slangs ('gírias' in pt-br):

http://www.urbandictionary.com/

It's updated very often by english speaker of all around the world.

Cheers

Thanks for sharing!

Idioms are an important part of our English learning unless you wanna sound as a robot!