A good tip for helping with lines: if you’re new to smoking/imbibing cannabis, do as much research online as you can. Also you can ask around while waiting. The new experience can be a little overwhelming for some, but if everyone takes their time learning at the house, they’ll spend less time waiting in line.
Edit: Find out if your dispensary has a website. If they have an online menu, even better. Get familiar with their stock and see what appeals to you and let your budtender know what you’re after and what you want to achieve. A good budtender will be able to point you in the right direction and turn you on to the products you need to feel better. And this is the part where you TIP THEM.