It's not always going to be /lookout.
The description gives hints to what emote you should use.
One of the East Shroud ones it says that the person would sit and ponder what they would do if they were a Sylph.
So you would use /think in that scenario.
I didn't really get a chance to look at all of them before getting kicked off for the re-maintenance, but I assume they should all have a hint of some sort like that.