There are two memory tricks, (or mnemonics) to remember the names of the notes on the staff.
Here it is with Emojis to really help it stick!
The 2nd mnemonic is for the notes on the lines of the staff
Which are: E-G-B-D-F
and it is:
Some people also say, “Every Good Boy Does Fine”
But really, you can make up any saying you want.