Can enemy see where you are smoking from? I noticed a small smoke traveling whenever i smoke with omen, but wondering if enemy sees it too. I remember playing hidden in a corner, and smoked across for a team. Wondering if enemy saw the smoke crossing before the smoke actually reached the site and expanded.

Can enemy hear you cancel your ult even if they dont see you? Can they hear you cancel from where you ulted from and can they hear you cancel from the spot you ulted to?