I am still at a point where I have to focus on the knitting, so right now the most I can do while knitting is listening to music that I need to learn, or participating in a conversation that does not take 100% of my brainpower.
EDIT: Revelation. I can also play idle/incremental games while knitting.
Knit while walking (slower than a power walk) on treadmill = getting my steps in for the day
This only works for sock knitting for me or doing sleeves where most of the work is on a platform in front of me.
For Lace/chart knitting I count out-loud to keep husband from interrupting mid-repeat. I have him trained to wait and I will stop at the end of the repeat
Youtube videos. See how many repeats you can get in during ads. Like to support my subs with the ads. Volume is muted and I have closed captions on. So if I am not looking, they are getting the ad revenue without me actually “watching” them.