Being told a description of a flower, and actually seeing that flower, are two different experiences.
In the class I took, and I assume most classes, various signs are described, but until I saw one on this forum, I had never seen a 30.06 sign .... there are NONE in my city.
I later saw one at a gun show in another city and one at a hospital in yet another city; I've seen a total of two 30.06 signs.
I haven't seen a 51% sign at all, except on this forum; doubt I will. (My church serves a shotglass of wine once or twice a year for on premise consumption ... but it isn't sold

)
Prior to the class, I never really read signs; I commend people who after class read them, and come here and ask ... wanting to be sure of what they read.
In class ... people are thinking about their picture, fingerprints, praying they qualify later when shooting; praying they pass the test. I know
i remembered 51 and 30.06, but the signs which DO NOT AFFECT CHLs (gunbusters/blue signs) got less class time than what DOES affect CHLs ...and imho, that's how it should be. I brought up blue signs and 30.06 questions to my instructor during a break when in class he said H.E.B. can NOT post a 30.06 sign .... and I asked why not (he meant to say 51% in addition to the blue sign, sign but another student asked the question confusingly oslt and was trying to get class moving again to cover everything).
And, my first "day out" I went to Walgreens drug store, stood in front of the door ... reading signs prior to going to the bank walked past a gunbuster sign, , and went to a restaurant ... all the while, reading signs
Eventually, you'll just "recognize" them, like you do a stop sign...... there's really only two you need to recognize; 51% and 30.06 ..... but yeah, I remember standing outside Walgreens reading
(some stores have like 50 different signs)
CAUTION Automatic Doors
Please return Carts
No unattended children in Store
Prosecutors will be shoplifted
Consumption of alcohol on this premises is a ...blah blah blah
The UNLICENSED possession ... blah blah blah
Kids eat free on Tuesdays
Try the 99 cent meal deal
Bananas, buy one get one free
I liked my class, maybe they did spend less time on things which do NOT affect CHLs, and more on what DOES affect CHLs ... but isn't that how it should be?
I'd have to search, but I may have asked that same question. I recall going into a restaurant in San Antonio, and upon seeing a sign, going back to leave my fanny pack in the car; then going back in sitting back down, READING the sign ... going back to my car ... putting on my fanny pack, going back in ... And having a great meal.
Now, I just "know"/"recognize" them ..... it's like when one first starts driving, you are so careful you overcompensate maybe ... but, you'll soon "recognize" signs.
Study the signs on that link given above.