Hi guys, finally got to the time when im ready to do my first chain adjustment(700ish miles on a Tenere)

Can you give me some pointers on:

1:What lubrication do you recommend and how do I apply it?
2:What tools do i need to adjust/check chain tension and the best method to do it(upright on a paddock stand/centre stand or on the side stand etc as per manual)
3:Anything you can think of i may need to avoid/remember to do?

Plus can you give me some pointers regarding how you can tell it needs chain lube as the chain currently looks light grey(ie its not smothered in grease)

Apologies for the questions but bear in mind, im a new bike owner(only a few months new) so im still a newbie about pretty much everything to do with maintenance etc and obviously dont want to do anything daft and reck it

Ryben