The phrase "act convincingly" is correct and usable in written English.
You can use it when describing someone's ability to perform or portray a character in a believable manner, often in the context of acting or presenting.
Example: "To succeed in this role, you must learn to act convincingly and engage the audience."
Alternatives: "perform credibly" or "portray authentically".
Meanwhile, Burnham added his voice to the emerging consensus that Labour in government failed to act convincingly on immigration.
In most roles you need to act convincingly, but as Hermione you're the main female character, and it's through your performance that the audience understands the ballet.
And casting directors in search of that most elusive of commodities, a child who can both act convincingly and sing, would do well to check out Gabe Green, a sixth grader from Tenafly, N.J., who plays Lorelei's younger brother, Wolfie.
Over the next few years, Mr. Frank said, he tried all sorts of different gags on his site, including videos on how to act convincingly and how to impress a date.
The reprogrammed cells look and act convincingly like bona fide cardiomyocytes, says Christine Mummery, a developmental biologist not involved with the research who studies cardiac stem cells at Leiden University Medical Center in the Netherlands.
Everyone is in good voice and acts convincingly, while Jochum skillfully shapes and controls the whole.
As Count Belfiore (her love interest), Timothy Fallon wasn't her vocal equal, but acted convincingly, particularly in the mad scene in which he and Sandrina lapse into delirium.
He almost cracked a few high notes and didn't attempt the pianissimo Verdi specified for the final phrase.He acted convincingly throughout the evening but continued to struggle vocally.
The act of convincingly commodifying blackness, without actually – *gasp* – being black, has been held in high esteem for decades.
We conclude, therefore, that gay people can act straight convincingly, as we're able to observe the ubiquitous straight mainstream, but it's a far trickier proposition in the other direction, because that involves going into the margins.
