If Israel does any attack on Lebanon it will be after Pope visit before Christmas or after Christmas (US holiday)
Palestinians in Lebanon need to take precaution. Israel may very well attack Palestinian refugee camps
Hezbollah I doubt will be on alert I haven't seen anything to suggest they have a proper functioning chain of command nor any plan B /protocols of response if coming under varying degrees of attack . Which is what Hamas had and it was operational. Hamas works in way where fighters respond to degree of attack based on what they were trained on and a proportional manner to the severeness of attack. They don't receive any orders for a response and don't have to wait for any. The standard protocol is to respond.
Hezbollah has no protocols in place. Besides consult Lebanese government and others tell them we will absorb attack and not put up a fight.
A competent and creative organization would show something different this time around. They used to be creative and have surprises. In 2006 they captured Israeli soldiers, fired the rockets they had, hit an Israeli warship, struck Israeli northern home front. This was due to Imad Mughienyeh leadership. Once Nasrallah and Iran took over all creativity went into dustbin.