What it means
You speak vividly and convincingly; stories are told with pauses and drama, and people listen. Opinions are stated firmly, in the first person. You like to learn what you can show afterward.
The flip side is that it's hard to admit you don't know and to hear an objection without taking offense. In an argument it matters not only to be right but how that looks from outside.
This isn't about you if you don't like to perform and in company you listen more than you tell.
How to check it on yourself
Check it against your past — write your answer down before you look at the chart.
If your Mercury is in Leo
What should match. Recall your last three dinners or get-togethers with friends. At at least two you tell the main stories, and people listen without interrupting.
When it’s not about you. At two out of three you mostly listen — this isn't about you.
Your sign and house of Mercury — in the free calculation: build my chart. How we check the rest — the site’s method.