I've known a few stutterers in my day. Most of them took it all in stride and we never made a big deal out of the occurrences nor was any indicated.
As long as you can make your point if the route gets a little circuitous what does it matter among friends.
Others have severe problems with stuttering. Persons such as this will sometimes acquire neurotic habits as the result and really and truly I'm okay with how they feel about it as well.
Today is International Stuttering Awareness Day. The day stems from that one percent of the world population said to have a stuttering problem ... which they describe as a speech disorder.
As for me, I would never wound the psyche of another over the issue of stuttering and I understand there are various levels of the problem with some of the more severe likely to impart a hesitation in social situations.
I welcome communication from all people. If you stutter I view it as 'character' more than anything whereby you impart your distinctiveness to the interaction.