Hebrew, the language of the Bible (and Israel) when experiencing the Holy Land having a little understanding of Hebrew goes a long way. Especially when trying to read signs/ books and communicating in general (But don't worry too much as many people speak English as well!)
If you can, try to print out theses lessons and practice writing the words and letters. Remember that you read Hebrew from right to left! If you have any questions feel free to email firstname.lastname@example.org.