There are two ways to determine the value of this indicator:
1) You can determine the number by reviewing relevant attendance sheets, monitoring reports and any other documents. The advantage of this approach is its low costs; its disadvantage is a risk of double counting (especially if people participated in more than one community dialogue).
2) You can conduct an interview with a representative sample of the target women and men, asking them whether they attended any of the community dialogues. The advantage of this approach is getting more reliable data (as long as people can still recall whether they participated or not); its disadvantage is more resources spent on data collection (unless you would anyway conduct surveys among these people – in such case, interviewing them about their participation should be the preferred option).