Help with Joints and Motions please

I'm supposed to identify the joints moving and the motions occurring while performing the following actions.
For some reason, I'm having a hard time...maybe I'm looking too much into it but I would appreciate some feedback please. I have my answers written out but its seems like I'm missing some or did some wrong.

1. Walking up the stairs -----joints moving and motions
2. Doing Jumping jacks-------joints moving and motions
3.Answering the phone-------- joints moving and motions
4. Jumping rope---------joints moving and motions

Thank you in advance!