some ways are...
cool
kool
kwel
tight
awesome
que chido
off the chain
chill
que chevere
Other ways to say someone is cool is just saying that they are awesome.Or if you are from newfoundland you could say that there sick :)
super-guay
cool
Thank you.
nos vemos! = see ya!
Many ways to say it, but here's an idiom: Que padre!
I like you
My eyes are on you
That probably depends on how they said it
hi is one of the best ways to talk to someone you don't know yet.i say, go for it!
You can say it in many ways ETC:Ifyou have friends you can say How are you my friend? Andif it is a teacher you can say how are you teacher ? Asyou can see there are many ways of saying it!
You either ignore them or say something bad about their mama.