1. 请

Here it means "to invite somebody to do something".

2. 问候你的家人

"问候你的家人" (wèn hòu nǐ de jiā rén) means "to give your family my warmest regards". This sentence is always used when a person sees somebody off. "代表我" (dài biǎo wǒ) which means "on behalf of me" is omitted.