Guitar Strings Order Of Notes

Want some serious help with this guitar stuff?
When have chords in a song and like E major is sitting above the first line
Then second line of verse has A major then D major random chords above the lines OF SONG what does this mean play the chord to one bar ie four beats then move on to next chord, it dont give how many bars or beats each chord has to be strummed to
What if they are all next to each other like AGD in a instrumental what does that mean?
What is the difference between right hand picking sweep picking alternate picking simple answer please
When picking a chord not strumming it what is the way to pick it in a finger picking pattern or by number of finger that lies on string ie picking the string with right hand in order the finger lies on strings with left.
Here is random song
http://www.ultimate-guitar.com/tabs/c/chris_daughtry/call_your_name_crd.htm
Where is the key to how many times have to strum each note
You’re right, in that particular tab (and many like it, actually that’s not tab, it’s more like a chord chart or a fake book) there’s no strumming pattern. The chord changes right at the word that the chord is above. That might be after four beats, but in that style of writing music it calls for you to have a good idea of how the song goes in the first place. If they’re all next to each other, it probably calls for a more rapid change.
Right hand picking, sweep picking, alternate picking… Well, if you’re right handed, odds are it’s your right hand doing the picking. I never see that anywhere. One thing I should point out is that many tabs are tabbed out by people who don’t really know what they’re talking about. Sweep picking, aka arpeggiating, aka rake picking, is when you quickly pick each note in a chord individually, using the pick in a sweeping motion. It’s a tough technique to master. The third one, alternate picking, is when you pick down-up-down-up-down-up-down-up back and forth, as opposed to down picking or up picking. The last one, that you didn’t mention, economy picking, is like alternate picking but sometimes skipping a beat between strings, for example down-up-down-up-down-down-up, where there’s two downs in a row because you’re switching from one string to the next.
Finger picking patterns are written differently, sometimes using letters or numbers to signify which finger to use for which string, usually p-i-m-a for the four fingers and T for the thumb. The easiest way to read this is in tab. None of those types of picking already talked about have anything to do with finger picking.
Songs such as the one you’ve included a link to expect you to do your homework. It tells you which chord to use next, but it’s up to you to figure out the strumming pattern by listening to the song.
Finding Notes On Guitar