The same speech that fires up one person makes another roll their eyes. Tailor the push.

People are moved by different things, and a single delivery aimed at everybody lands properly on about a third of the room. Some respond to challenge, some to reassurance, some to being left alone and trusted, and applying the wrong one is worse than saying nothing. The general address is convenient for you and inefficient for them.

Work out what each person needs before the moment arrives. Ask directly if you are unsure: some people will tell you exactly what helps. Then say the right thing quietly to each rather than the same thing loudly to all.