To convincingly do something is to make people believe that you are actually doing what you are saying. You might convincingly argue your case or convincingly perform your act.
He convincingly argued his case to the judge.
She convincingly performed her act on stage.
ADV
in a convincing manner
1
You think I'm trying to convince you of something, persuade or cajole you.
2
The reasons are not convincing.
3
That's not convincing of the comprehensiveness of the coverage.
4
The portrayal is potent and convincing.
5
The committee was not convinced and the investigation continued.
6
The impetus is on the proposer to do the convincing.
7
The result of the experiment is revealing but is not convincing.
8
The unwholesome foursome were not convinced.
9
By this time, Napoleon himself was convinced of their perfidy.
10
None of the reasons given in the nom are convincing.