What will be best is going to depend on too many particulars to be easy to specify in a post of reasonable length.
Use your own judgement, and speak up when you think best, and not otherwise. Of course, that will be best only if you have good judgement, but if you don't, you won't do it right anyway.
Use your own judgement, and speak up when you think best, and not otherwise. Of course, that will be best only if you have good judgement, but if you don't, you won't do it right anyway.
"A wise man ... proportions his belief to the evidence."
— David Hume, An Enquiry Concerning Human Understanding, Section X, Part I.