He feels more confident on home turf.

他在主场感到更有信心。

I think people feel a bit more confident.

我认为人们感觉更自信一点儿了。

She sounded more confident than she felt.

她的语气听起来比她本人的感觉要有信心。

In time he became more confident and relaxed.

最终他变得更加自信而从容了。

I feel more confident in my actions now.

我现在对自己的行动更有信心了。