Hi! As evidenced by the rise of the resource routes and so forth, it's easy to see some Glitchen are interested in making their home street a place for the benefit of others. As I spend my time on the routes I've noticed a way to be helpful that might not be as obvious as some others.
Although (in my experience as both a mouse and a keyboard player) keyboard commands are quicker, there are times and circumstances for some people that mean the mouse is preferred or necessary. So if you're designing your street with visitors in mind it may be helpful to take a moment to think of the mouse style of play, if it's not something you're used to. Obviously there are plenty of ways to set up a home street but I wanted to share this in case it might be helpful for people who haven't thought about it.
The first big example is animals around the resources. If you don't want to constrain your animals very tightly with the animal stick, try placing them in strategic locations. For example butterflies mostly stay to the top and middle, and aren't going to be quite as annoying near your lower-down gardens as pigs would be. One or two chickens in front of a garden are problematic at times but not so much as pigs, as you can click to grain them and make them fly away, or KFC them out of the way. Resources such as trees or rocks* will have a larger clickable area versus things like garden plots, barnacles, or jellys, so can tolerate the presence of animals more easily.
*edit: MX Ghostie reminded me that rocks get down to nubs with not as much clickable area. If you're a keyboard user one way to get around this is double-clicking your pick instead of the rock.
edit 2: Commenters have also mentioned making sure your signpost is free of obstructions; gnomes, note posts, and gnome speech bubbles can all make clicking signs difficult or impossible.
The other thing I've noticed is note posts. If you're using the keyboard, you have to press enter in order to see the title of the note, and at that point you might as well hit enter to read it too. But if you're using the mouse, it's very quick and easy to mouse over things, which will get you the title of the note very quickly and sometimes without even specifically trying. That means that if you have directions or instructions to give visitors, putting the most important info in the title will be more beneficial.
If giving directions, remember that an ascii left arrow won't show up at the beginning of a note. If giving instructions, try to abbreviate and get the instructions in the title, or clearly say what the instructions are about - that way people who go through your street quickly but mouse over the sign will get the info whereas they might not otherwise gotten the info too late or not at all. (As an example, I recently did something on someone's home street they had asked in a note not to; although I'd looked at the note title prior to my actions I had no idea from the title of the note that the contents were referring to the resources I was using so I hadn't bothered to read the full note.)
I hope this helps some! Thanks to all who use their home streets as a way to think of others - I know for me and plenty of others it really helps enhance the game.