HUGGING, WHAT IS IT?

This morning saw someone share a picture on hug , picture below.

I get lots of it from closed friends and loved ones. Some of my hiking friends give me a warm hug when ever they see me, and I do too.But sometimes if I had not seen them for a long time, I might forget who are the ones ok with a hug ,so I wait for them to make the first move.Of course there are times they don't and they would say I don't care anymore. I know they say that in jest, they are very old and good friends and don't take offends easily. 

I thought it was so meaniful and google abit and look what I found.

There is even an interesting article which I found rather interesting.

Hugging is a common interaction between people where bodies are brought into close contact with one another. Reasons to hug Hugging is used for a number of reasons. And sometimes for no apparent reason (although there is almost always an underlying purpose). Greeting Hugging as a form of greeting is usually highly ritualized, with prescribed action and timings. These vary significantly with culture and can include variations such as: Initial throwing hands wide, with eye contact and friendly facial expressions that signal the impending hug. One- or two-handed hug. Back-slapping or rubbing (typically two or three times). Squeezing and lifting as expressions of delight. Words of greeting spoken at the same time. Cheek kissing or touching (one, two or three times, on alternating sides). Holding, patting and eye contact whilst disengaging. Hugs may be used both in meeting and leaving, with different rules for how each is executed. Read the rest here