Did you know? We vary the intonation of the 2nd verb if referring twice to the same noun?
1. Please set your mobile phone to silent mode, and refrain from talking on the phone.
2. Please set your mobile phone to silent mode and refrain from talking on the phone.
The answer is number 2, because if we do not emphasize the intonation when uttering the second verb–or action–the two actions mentioned will be expressed in a monotone fashion and the effect will be to unconsciously interpret the instructions as referring to two different nouns or items. The speech of the speaker will also be incredibly robotic and boring.