When you meet someone, one of two things happen; either you shake hands or you hug. I've noticed recently a lot more people are into hugging for some reason.
I'm always hesitant to give a hug if we haven't met at least once before.
You don't think about it initially, but there's a lot that can go wrong in a hug depending on what you and the other individual does. Hopefully this tutorial video will help sort everything out for you.
By sharing this, the fewer "awkward" hug exchanges there will be in the future (hopefully).
I personally prefer the fist bump but that's just me.