Q: How do I make...
A: Check Stencylforge (if possible) for "Demo-" or "Mee" (or for any key words) to see if someone has already made the behavior you are about to ask for.
Tips on whether a behavior on Forge is good:
Check the rating. If the rating is 4 stars or more (and there have been a lot of votes) its probably a good one. Next, read the comments. If a lot of people have had trouble with the behavior, find another behavior, if possible. If not, give it a try. What if it doesn't work? See next question!
Q: I can't get [insert name here]'s behavior to work
A: Private Message the person who created the behavior. If you make a post about it, you probably have a low chance of getting a response on how to work that behavior, as a lot of us have probably never heard of/used the behavior you are asking about. If you don't get a response within a week (and you know the creator has been active during that week from looking at the "Last Activity On:" section of their profile) then you should either try to get it to work, or ask on the forums about how to make such a behavior (Not for help getting the one you downloaded working).
If you can't download from Stencylforge for any reason, then go ahead and ask about creating a behavior on the forums.
Happy Stencyling!