Things I Have Learned in the Past Five Minutes: qamuSHa' is Klingon for "I love you", but it's usually expressed with nonverbal growls, so it doesn't have nearly the full effect on paper.

ETA: I don't think I'll ever be in a situation where I could use this, but I find it extremely amusing that it's not hard to find out that ngaghchuqbogh loDpu' be'pu' ghap DIbvaD wo'lIj vuD nuq means "So, what are your Empire's thoughts on gay marriage?" Research is fun!