If you say that someone or something reminds you of another person or thing, you mean that they are similar to the other person or thing and that they make you think about them. She reminds me of the wife of the pilot who used to work for you
To put (one) in mind of something; to bring to the remembrance of; to bring to the notice or consideration of (a person)
If someone reminds you of a fact or event that you already know about, they say something which makes you think about it. So she simply welcomed him and reminded him of the last time they had met I had to remind myself that being confident is not the same as being perfect!
If someone reminds you to do a particular thing, they say something which makes you remember to do it. Can you remind me to buy a bottle of Martini? The note was to remind him about something he had to explain to one of his students
emphasis You use remind in expressions such as Let me remind you that and May I remind you that to introduce a piece of information that you want to emphasize. It may be something that the hearer already knows about or a new piece of information. Sometimes these expressions can sound unfriendly. `Let me remind you,' said Marianne, `that Manchester is also my home town.' Need I remind you who the enemy is?