This is a sentence from my dictionary:
She carried herself straight and with confidence.
The sentence is fairly strange to me, for the extra conjunction "and". Normally I would say something like this:
She carried herself straight with confidence.
This is more regular to me. For example, I would say "She stood here, smiling with confident." But I wouldn't say "She stood here, smiling and with confident." So why did the original sentence add an extra "and"?