Asking about plans

Asking about plans
What are you up to (this evening, tonight, etc.)?
Are you doing anything (tonight, this weekend, etc.)?
(tomorrow, this weekend, etc.)?
Are you
Making a suggestion
How about (playing tennis / doing something)?
Shall
(go to the park / do something)?
Let's (have a picnic / do something).
Agreeing
Good"
Fine. That sounds fun.
Declining
I'm
Yes, OK. That's perfect.
I can't. No, thanks.