It depends. I was raised in my country's ways but I grew up here... so...
When I greet my friends, I kiss them on the cheek/hug them.
When I greet my family and elders, I bow.
When I greet strangers (it usually depends), but it's either a bow or a handshake.

Most commonly It's just "hey!" or any other method to greet people with words.

If its the first time I meet them, I give them a handshake

I usually put my arm straight up, wave and then shout "Hey!!"

Just say hi....sometimes wats up....depends...

I just say, "hello", "hey there", or something and then wave at them.

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I read so much mangas, I'm too lazy to watch anime!

Manga I'm loving ATM: Heart no Kuni no Alice

normaly its just a "fit lik, foo ya deen th day"

I just yell something or wave my hand. But if it's more formal, I'll shake hands.

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I'll hug your problems away.

with my family i give hugs and smile a lot, which still fells awkward and forced meh o well. With strangers i give then a hardy handshake, both men and women. With for my friends i just give a upward nod and we all know it means " hey whats up, you wanna do anything because im bored as shit right now" lol.

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" 9 years and 163 days later, 2% of my body cells are still in love with her"

I'm used to doing a traditional thai bow when I see new people and its rather confusing because I did it to my lecturers without noticing when I entered the room. I stopped doing it after a while since it was a force of habit. But now I normally go with either a handshake or a wave and "hey"

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Do not feed the trolls