I read somewhere that when you check your nearby pokemon, you can click on one and something will pop up showing you which direction to go. I've not seen this, so could someone explain what clicking on a specific pokemon does?
I just tested that and it didn't work. What I got to notice is that if you got like a Pokemon you want to get to first walk in a straight way in different directions until you see that the Pokemon that you want gets closer to the first spot in the Pokemon nearby. Also if the Pokemon gets farther away from the first spot just return back to the spot where you where before where the Pokemon was closer to you.
I have heard that that actually works recently but I don't seem to see anything that shows where the Pokemon is. I mean the park near my house has a lot of Pokemon and so there are a lot of grasses appearing so if the location is shown by those things of grass/leafs then it is hard to tell where the Pokemon is.
I think it's working a little better now, at least for me it has.
When you click on one Pokémon in the nearby list, the little window in the bottom right will instead show you only the Pokemon you're hunting and how many "footprints" they are away. You can essentially track them down by heading in a direction where the footprints begin to decrease.
As far as I know, you can click a specific pokemon just to keep track of the footprints that it has and if you are super close I believe that the box flashes (or similar animation)!
I know about clicking the Pokemon and trying to keep track of it like that but I think that having the nearby Pokemon GUI open is better since it is at least more helpful.