Advice or Advise
The word advice is a noun meaning a suggestion for a beneficial course of action.
The word advise is a verb meaning to give advice.
Try using the word assistance instead of advice.
If the sentence still makes sense, then advice is almost certainly correct.
(This trick works because advice is a noun, just like the word assistance.)
I offered my advice.
I offered my assistance.
Try using the verb to assist (in its various forms, assisting, assisted, assists) instead of advise.
If the sentence still makes sense, then advise is almost certainly correct.
However, if you find yourself trying to use assistance, then you should be using advice (because both are nouns).
(This trick works because to advise is a verb, just like to assist.)
Are you trying to advise me?
Are you trying to assist me?
Taken from http://www.grammar-monster.com