“Maybe” is a word I don’t like to hear, because by definition, it’s ‘conditional’ in nature.

“Maybe you’ve done this…” also carries the flip side (in the listener’s head) of “No, I haven’t.”  Click.  Disengage.

“IF” is the magic word.  It activates the imagination, and doesn’t leave room for the doubting side of the coin.

Example:
“Maybe you’re seven feet tall…” only talks to people who ARE that height.

But “If you were seven feet tall…” opens up the mental possibility – and the ‘buy-in’ factor, as a result.

There’s also the inclusive: “We’ve all done this…” or “We’ve all seen this…”  (But it has to be true.  It can’t be “We’ve all skinned a buffalo with a butter knife…”)

Anyway, now you’ve got a couple of new arrows in your quiver to help make you sound more CERTAIN – and dynamic – on the air in a very subtle way.