Up for it

We use this expression to say that we are keen on something.

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Written	No
Spoken	Yes
Formal	No
Informal	Yes

Example 1

I want to go to that new Chinese restaurant. What do you think?
Yes, I'm up for it. It sounds nice.

Example 2

Why don't we go to London for the weekend?
I'm up for it. I love shopping in London.