puff one's chest

動詞

To act arrogantly and resolutely.

日本語の意味

威張る、傲慢にふるまう / 堂々と振る舞う / 自信満々に行動する

It's easy to puff one's chest in front of strangers, but it's harder to show real confidence.

見知らぬ人の前で胸を張って見せるのは簡単だが、本当の自信を示すのは難しい。

意味（1）

To act arrogantly and resolutely.

puffs one's chest

（ present singular third-person ）

puffing one's chest

（ participle present ）

puffed one's chest

（ participle past ）

puffed one's chest

（ past ）