Bluff your way through
Definition 1 of 1
Pro Tip 1/3Confidence Illusion
Acting with confidence, even without knowledge or preparation, often convincing others. 
She managed to bluff her way through the interview, smiling confidently.
Pro Tip 2/3Not for Experts
Best used among non-experts; knowledgeable people might see through the bluff. 
He tried to bluff his way through the debate, but the expert panel was not fooled.
Pro Tip 3/3Avoid Overuse
Repeatedly bluffing can damage credibility; use sparingly and with caution. 
After bluffing her way through several meetings, her colleagues became suspicious.