I personally take my cues from the energy of the family/ patient on what "tone" they need from me. Some people are reassured by a formal, serious bullet list approach. IE good evening Mr Stevens I understand that you are here with XYZ. This is what has been done so far, and this is the plan for tonight and tomorrow. Assess and answer questions then leave them be. An elderly person might need a completely different approach where they don't want too many details, just to know the reason they feel like crap is they have PNA and that you are giving them medicine for it and will keep them comfortable. I rarely discuss my personal life with patients, but if it's a lonely elderly person I may mention my kids and a funny anecdote about them because it opens the door for them to share about their kids and grandkids which gives me insight into their needs and makes them feel connected/ safe with me. Which if they sundown later in the night I use those insights to remind them of who they are and what matters to them.
Nursing is an art as well as a science. We're all just only human with unique skill sets. Some of us better listeners, some of us more comforting, some more clinical. There's no one way to be because nursing is too broad for that.
At the end of the day I say be practical and kind. If they are manipulative, be firm/ set limits. If they are anxious address their concerns/ if the concerns are unreasonable/ be kind but firm in trying to readjust expectations. If they talk forever... arrange for a co-worker rescue you.
If a communication goes badly learn from it, forgive yourself and move on. This expectation that nurses are expected to be all things is a harmful one. We should communicate in a way that takes into account the patient and their needs because that is therapeutic. We should not attempt to fill some void in their life... that's insane