私が何を見ていると思う？ Guess what I'm lookin' at?

This is something I see from time to time in my afternoon class right after lunch. However it is the first time I have ever seen it on the train.

Why are these high school kids on the train with their desks? Can you guess??

～と推測｛すいそく｝する

・You could guess as well as I could. :

私にもよく分かりません。

・I'm just guessing. :

想像ですが。

うまく言い当てる、言い当てる、解きあてる

・I would never have guessed that. ; That isn't something I would have ever guessed. : そのことは全く予想していませんでした。

〈米俗〉～だと思う

・I guess I can do that. : 《相手に誘われて》じゃあそうさせてもらおうかな。

・I guess I never will. : とても無理のようです。

・I guess you could say that. : そのようだね。

Guess what?
何だか分かる？／当ててみて。◆話を切り出すときや、相手の注意を引くときなどに使われる。