“I still can't tell if that's funny or really scary.”

I've always wanted be able to answer someone with "Indeed" and have it sound that cool! But alas I am not that cool. :(  I bow to you coolness Gmork.

“I still can't tell if that's funny or really scary.”

I, myself, use 'indeed' all the time.  It gives me a warm feeling inside.
"Keen," however, I'll never make it sound as melodic as Gmork just did.
nifty keeno funtime eh?
Tastes Like Chicken

awww, shucks.

you make it sound so much more clever than it really is...somehow "indeed" comes out more in my writing than speaking.  I suppose some words flow better in writing.