Is it ok if I randomly dicho yo?

lol it's totally fine!

Well it depends... Do tu mean yo as in a greeting o yo as in tu without the u, o do tu mean your sentence was stopped short due to a serial killer attacking your house?
Because if the first o last applies... Its totally fine.

Yo, waddup!

i don't have a problem with it...

Yeah,no problem in saying yo :D

i luv saying yo randomly, so i guess its fine

I'm fine with it.

It's ok i guess..

YO! :D

Honestly, I was under the impression that people dicho yo randomly....

I would ask
Do I know you?