Arisia was the first con I ever attended. I was nervous at first, but then I was blown away by how accepting and supportive everyone was, and I knew I'd be back. In the years since then, I've played my first tabletop RPG at Arisia, dressed in cosplay for the first time at Arisia, and bought my first top hat at Arisia. :-) Hooray for Arisia, a safe space for enjoying your firsts!