In this case I would argue that the pastime - watching tennis - is the less portable occupation. The more serious intent involves the highly portable occupation - the stitching.
During the first week of Wimbledon I have completed the stitching on two A3 sized pieces. This morning I pressed them, and put them on the pile of work to be finished before photography.
I am working on the next in line, but decided that I'd better have another piece prepared. So chose some threads and a fine calico backing for a lino originated piece. For some reason I've chosen something autumnal just as the weather here is turning summery.
My multi-tasking knows no bounds when there are screamers (women players who give a grunt of effort a whole new meaning) on court I watch with the sound down, and have the BBC iplayer on while stitching. And this all comes back to me when I encounter the work much later. I can still remember what was going on around me when I look at some pieces even years later.