Enguy doesn't stop the conversation to fix you.
Say "I am agree with you." and Enguy doesn't freeze the conversation to mark it. it just answers naturally, "I agree with you too, actually -- here's why..." -- quietly weaving the correct phrasing into its reply. Sometimes you will hear a tiny tweak to your wording, but it never interrupts the flow.
Ask about a word or idiom in the middle of a conversation, and Enguy explains it in plain English, then smoothly hands the conversation right back to you.