YOU SAID:

hey Jake! what up? I can't believe I saw you here.

INTO JAPANESE

やあジェイク！どうした？ここであなたに会ったなんて信じられない。

BACK INTO ENGLISH

Hi Jake! What happened? I can't believe I met you here.

INTO JAPANESE

こんにちはジェイク！どうした？ここでお会いしたなんて信じられません。

BACK INTO ENGLISH

Hi Jake! What happened? I can't believe I met you here.