The tendency is to focus on what members aren’t doing (but you wish they would).
For example, “members are attending events and reading content, but they’re not participating”.
In these situations, the temptation is to launch a discussion forum and start pestering members to participate in it.
There are two problems with this.
First, your members might already be telling you they don’t want to participate in a discussion forum. If members aren’t doing something, the problem might not be awareness, it might be motivation. And more pestering won’t solve that.
Second, you’re not building upon the very things that are working. If members are enjoying the content and events, the obvious next step is to have even better content and events. Ask members what they like and dislike about these activities at the moment, what would they like to see in them, and build from there.
Just because members aren’t interacting in the exact way you originally envisioned doesn’t mean you’re not building an incredibly valuable community for both yourself and for them.