How should I tell him that I like him?

I am 15 and will be a sophomore next year. This guy that I am interested in also shares the same drivers education class that I take. We have had a couple classes throughout the year where we would sit together and talk, etc... I feel like we have really good chemistry. Tomorrow is our final drivers education class and we walk similar routes on the way home. How should I tell him that I am interested in him and/or would like to get together over the summer? Thank you so much!