Dispensary for the first time

Heyyy. I am living in Upstate/Central New York and have smoked and vaped before. However it was usually vapes I ordered online or it was with friends who had brought their own weed, or cigarettes that we all passed around. I never have been to a dispensary myself though and want to start in order to get my own weed (mostly pre rolls probs) my question is what do I do and how do I go about it?