Rachel: Ross is coming over. I think now would be a really good time to talk to him.

Joey: I guess so. I’m just… really nervous.

Rachel: Okay, well keep in mind that by the time you’re done, they’ll probably be serving dinner.

Explanation:

bear/keep somebody/something in mind   to remember or think about someone or something when you are doing something :
It’s a good idea – I’ll keep it in mind.

فکر خوبیه. یادم می مونه.