I just lift my legs a little which completely blocks them from reclining because at that point my knees are pressed into the seat when it's fully upright. They

I just lift my legs a little which completely blocks them from reclining because at that point my knees are pressed into the seat when it's fully upright. They literally can't recline because there's no room to do so. Airlines have reached the point where in a lot of cases there is no room between the seats when they're fully upright, unless the seat behind the passenger is empty it physically can't recline.