Instead of coming up with things that dysfluent speakers can do to normalize, we might do well to think of what smooth speakers can do not to shame dysfluent people.
This blog contains a list of some ideas.
First, it is considered really rude by many dysfluent people when the people they are talking to finish their sentences for them. We have almost all done this and it still needs to stop. Learning to deal with our own anxiety about completion is better than trying to make the conversation fit a given structure or form perfectly.
Along with that is the demand that non-dysfluent speakers work extra hard to be patient and not to judge dysfluent friends. If a conversation is not fitting the expected choreography, the response should not be to become angry or to stress out, that causes more emotional problems for everyone involved. Instead, patience is needed as a new conversation (not the one expected) freely appears.
Miscommunication is an inevitable factor in any conversation. People always confuse meanings, say the wrong word, produce unintended meanings or other glitches come up. Instead of nodding and pretending to always understand what your conversation partner is communicating, it is better to exhibit the trait of honesty and ask what is meant.
Moments of checking in or communications about the communication process (meta-communication or conversation repair) are crucial prosthetic discursive devices to help establish meanings that are recognized by all conversant parties.
This was a post about how to communicate when you find extra repetitions, waiting or confusion in a conversation. These lessons can be applied and thought of broadly.