I received a legal document called **promise of hiring** 2 hours ago. I translated it from French to English on Google Translate, so nevermind the errors.

> Hello Hani,   
> 
> As a result of our discussion, I am enclosing the promise to hire you
> and the attached collective agreement. 
> 
> Thank you for confirming your agreement for the hiring **before the end
> of the month** so that we can prepare your arrival.  
> 
> We are very pleased that you join us in the ****** project! 
> 
> Please do not hesitate to call me if you have any questions or need
> more information.


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##Questions##

 1. Is it ok if I wait until tomorrow to accept the job offer? I don't want to look like I am in a hurry and I want to enjoy it a little.

 2. Should I send them a confirmation mail that I received the job offer and that I'll answer them tomorrow?