[not a teacher]
Some context might help to clarify your question, but in general, a tip may be given without any solicitation, whereas a hint may be given if there is a known problem/question.
Say buddy, I noticed you keep spelling that word wrong. Here's a tip, try a dictionary!
1: Boy, I sure wish I could spell this word correctly.
2: Here's a hint, it's in the dictionary.
Student or Learner