Our library has outdoor game to checkout. Most work just fine Indoor: ring toss, giant jenga, corn hole, miniature bowling (set upon table), etc. No need to buy or find storage space ... just check out then return☺.
When children practice reading at school, one technique is to give them a "telephone" made of curved PVC pipe. One opening is held against ear, and the person reads (or in this case sings) into other opening placed near the mouth. Sound is amplified in ear, so child ends up whispering, and others are not disturbed. Might try it! My other thought is has your gentleman had his hearing checked?
Golden Carers is an exceptional resource tool for the aged care industry. I like the quality of resources and regular newsletters alerting you to updates.
Are You Using Your Local Library Enough?