ointer:No, no ,no, no.
1) Person #1 wolfs down a burger in 2 minutes. If he put down his burger & put his mask on after each bite, by the time he got his mask on it would be time to take it off again as he would be ready for another bite. So there's no point in putting the mask on after each bite.
2) Person #2 takes a bite & swallows it within seconds & then chit chats for 10 minutes before her next bite. There is a point in her putting her mask on between bites.