Maybe he did place it in the mouth. Scripture doesn’t say, unfortunately.
“Take, eat; this is my body.” Matthew 26:26
I suppose you need to go back to the original text but that sounds like a hand was involved to me.
Exactly. And whereas modern Americans don't do that kind of thing (except maybe bride and groom with wedding cake), Israelis and Arabs do -- not all the time, but in circumstances of hospitality or friendship. (Ethiopians do too, I hear, at shared meals if there's affection present.)