さて、始はじめましょう。
sate, hajimemashou.
Now, let's begin.
さて、どうする?
sate, dou suru?
Well then, what will we do?
さて…どうしよう。
sate... dou shiyou.
Well... what should I do?
さて、
sate,
(used alone while thinking) "well..."