Student or Learner
1) If this interests you at all please feel free to let me know.
2) If this interests you please feel free to let me know.
What is the difference between 1 and 2?
What does at all mean in this case?
It can be omitted in this context without much difference in meaning.
It can mean 'in any way' or 'even a little bit'.
Type at all in the Google Custom S(earch) box near the top of the page.You will find links to previous answers to your question.