One way to judge the quality of a library conference or meeting is to check out the lanyards that are provided to registrants. Lanyards come in a variety of styles: the stretchy, the logo-emblazoned, the too-long, the too-short. The ones that dip your name badge into your soup. The two-ended shoestring style. The looped ones with clips. The ones that make people lean in uncomfortably close while trying to read your name. And the ones that always twist around backwards.
Defining what makes a quality lanyard is a matter of personal preference.
If you find one you like, hang on to it, and wear it at any subsequent conferences you attend. Traveling with your own favorite lanyard is one of the subtle, yet distinct, details that say to the world, "Yes, I'm a librarian."
If that's not enough, the world can just read your name badge.