Tablature question

[Pinkeyes]

Quite often you get a tab which people write the chord above each bar.

Does this mean that is the chord you form, or that is the nearest chord, and then you figure it out ? Like this:

Do you form an Am and then just stick your pinky on the 3rd fret ? - because it isn't just an Am is it ?

If they don't write a chord, do you just have to figure it out for yourself ?

Go easy here, I am very new to this guitar lark...

 

[Pinkeyes]

Thanks very much for that.

So how are you supposed to know that ? - Or do you just figure it out. I was under the assumption that you grab and tab and away you go. There seems to be a bit of work needed to actually use it to produce the song from it...

Another quickie:
you wrote;

Asus2
0
0
2
2
0
0

But I was watching a tuition DVD over the weekend that said that was A5 (or the A powerchord). I just doubled checked online and some sites have A5 as you have shown it and other have it as a 1 string thing.

Wow this is confusing !