οὐδὲν μέγα δοκεῖν εὖ λέγειν.
how to understand it? οὐδὲν μέγα ἐστι δοκεῖν εὖ λέγειν?it is not a great thing to seem to speak well?
“It’s no great thing (i.e It’s not impressive) to seem to speak well” - this is when he’s talking about praising your own audience, right?
yes