Large print menus, and not busy/fussy menus are helpful too, From VI point of view.

In general I hate noisy clangy cafes, not sure how one fixes that problem, maybe lots of soft furnishings?

I mean if I go to a cafe or restaurant I usually want to relax and socialise, hearing every clang of metal and glass isn't my idea of pleasant.

If you have music playing, please make sure it is quiet. In general, try to nurture a peaceful atmosphere. Honestly that's what tends to overwhelm me the most when going for a drink or to eat somewhere. If there is too much going on, I can't properly focus on my friends or the waiter might be saying.

Braille menus would be amazing! Far too few places have those.

I'm VI and a huge boba enthusiast.
I agree with all of the comments below.
May I also suggest you add descriptions - like: sweet, refreshing, no milk, etc. - to you teas so that customers know what they're getting even without seeing the pictures - which should still be present. I also suggest: if you happen to have special flavors or drinks, please don't give them super-embarassing or contorted names that we may have to say out loud.

My go-to boba place is really nice and accessible, but one of their drinks - a pretty normal black sugar milk tea with tapioca - is named "Dirty Hong-Konger" and the utter cringe of having to say it out loud had me resort to point at the specific spot on the menu and say "this one" out of cringe.

Maybe have a QR code option? Not all blind people know Braille and may use their phone for reading instead! OH and make sure your bathroom signs are right! I’ve ran into a few that are horribly misspelled, even in gov buildings.

An accessible PoS terminal, or at the very least not asking me how much I want to tip and a cashier that stares at me like a deer in a pair of oncoming headlights while the payment machine dutifully waits, never knowing that it's inaccessible to the person who is using it.

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Also yeah Braille and large-print menus would be good

On the menu part. If have a website for your restaurant. Just make your menus with prices easily accessible. A lot of blind people actually don't read braille. So it's easier to look it up and have our screen reader tell us what's on the menu.

I would say simple does it most places are fine but I am really adaptable fairly easy going, pragmatic, and work with whatever. I am a really reasonable, no fuss, independent person who just chats with people or keeps to myself.

ideally a accessible menu choice would be cool but I don’t always mostly don’t use it anyway.

I guess the most important thing is friendly staff. If I ask hey what do you have on the menu, I expect people to not cop an attitude. If. I say after hey can you pleas help me to a table, I think that will be great if you do or something like that, likewise be kind and help out, and likewise don’t cop an attitude. Just basic human decency right?

That’s all I need and ask for you’ll be fine. I don’t honestly need too much more I deal with things as they come.

Just one more thing and not blindness related but again be friendly and human decencies. I go to some place like that to relax and socialize or chat. If I order my drink and make conversation be polite and response if busy politely excuse yourself and don’t be a jerk. I may say oh are you busy? Or oh how are you liking this hot weather. Or whatever may if not busy engage the person at the front with casual conversation. How’s your shift going even.

I mean most people don’t mind but there’s a few jerks out there for sure. But besides that I am easy. If I ask for help basically I expect friendliness. If I can’t find the counter and say excuse me where is the counter? again, likewise don’t be a jerk

I think you get the pattern. Usually If I need something I’ll ask and usually places don’t have to go out of their way to accomodate me too much mostly things like that. If it’s a buffet or something it would be a bit different.

Honestly, one of the biggest things you can do is make sure your employees know how to serve people with disabilities. It's amazing how many people don't know how to "handle" a blind or deaf customer. If a blind person walks in, they probably have no idea where the register is for example so any help from the employee is very appreciated. Patience from the employee if the person can't access the menu and may need help selecting something. When the drink is ready, make sure they know where thier drink is. Sometimes it's just left on the counter and can be hard to find. I don't want to speak for the deaf community but something as simple as communicating through writing and allowing them write out thier orders is helpful.

I love boba tea and we frequent our tea places regularly. Good luck with everything!

Screen reader accessible and up to date menus that are easily findable via QR code or website.