Q. How do you a dog to play again? He quit when I was doing online schooling. He thinks that trying to bite my foot is play. I miss the play like he use
A. Get him outside and try new games with him mixed with the ones he used to love. Most dogs can't resist ball games. Spend time with him but don't let him know that you are anxious or stressed that he isn't behaving as he was, he can pick up on these emotions but get them confused and may make him unsure about acting normally. Try and be as calm and relaxed as possible.
It could also be that he doesn't want to play as much anymore. Some dogs as they get older prefer to play a lot less than they did. Also when they are poorly they won't be so keen on playing.