I know that I can make LIIs laugh out aloud by pulling out some weird silliness (which I have plenty of). It does not take that much. LSIs reaction is actually very similar. The main difference is that LSIs will state the obvious (or something very false intention behind it) where as LIIs just probably wonder.

I think that from this observation it can be expanded.

From what I have seen ESEs that they are the initiators. My removed unreal presence and talk makes them very curios but I don't really know if this work same way with LIIs.