What are you doing right now?

[terein]

In Japanese they have words at the end o sentences that covey the feeling. So basically smilies but actually words.

[Vortex]

sometimes i see they use a lot of ~~~~~~, what does that mean?

[The Kakama]

Maybe it's like asterisks?

[Vortex]

i don't know, but they put it at the end of every phrase.

like しぢせいをなのぴった~~~~~~!!! or something like that.

[The Kakama]

*Shrugs*
Anyway, off topic.

[Isobel The Sorceress]

sometimes i see they use a lot of ~~~~~~, what does that mean?

I think it means the lengthening of the end of the sentence.

Example: "This is so cooooool!"

[Vortex]

that makes more sense. I have seen them repeat the final vowel too, like たああああ,it might be an abbreviated version of this.

[Vurn]

i don't know, but they put it at the end of every phrase.

like しぢせいをなのぴった~~~~~~!!! or something like that.

yeah it is an informal way of conveying the lengthening of the last vowel which makes the sentence more expressive or emotional as far as i know

(also, shijisei o nanopitta, what does that mean?)

[Vortex]

(also, shijisei o nanopitta, what does that mean?)

just random syllables, would be surprised if they have a translation XD

[Isobel The Sorceress]

(also, shijisei o nanopitta, what does that mean?)

just random syllables, would be surprised if they have a translation XD

I was wondering about that, too.
I tried to translate, but got nothing out of it.