Acknowledging it upfront vs Letting them find out.

Acknowledging it upfront vs Letting them find out. Hi fellow stutterers. Which approach do you take when talking to new people or a group of people? All my life (27y/o) I've always tried to keep it hidden and then let people find out when I inadvertently stammer. Now I feel like acknowledging it before I begin to speak would help lessen the tension for me and reduce the probability of fear induced stammering. What are your views on this?