Heh theories

At this point Maxim's "heh" became iconic, and im sure everybody knows what he means by heh, but im still going to make this poll.

1. Heh means yes, so the suggestions, questions he replies to with a heh will be added.

2. Heh refers to "huhh?" Meaning maxim didnt think of it yet.

3.Heh is a laughter, the suggestion is that ridiculous that it made maxim laugh

4.Heh is a question, maxim is dumb and cant comprehend the suggestion