How to greet??

Hello.

How should I greet my uncle, his wife and their two kids (both girls, age 15 and 18). We are all Lebanese but live in Europe.

I havent seen them for 6-7 years so I'm getting pretty nervous hehe. I will "cheek kiss" them, but how do I start? Which cheek to kiss first and how many times ??? This can get pretty embarrassing

dont think about it too much!
just go with the flow,
start with right cheek and 3 times is it not?

Well, with Lebanese, it's usually 3 kisses, starting with the left cheek.

However, you should only kiss your uncle, your uncle's wife and his daughters are strange women to you (ie. not your mother, sisters, etc), so kissing/shaking hands/hugging/and physical contact is off limits.