[header] How to avoid a guy who likes you in high school [title] Time your day accordingly. [step] Does the guy seem to appear out of nowhere with flowers, or just wanting to talk? Maybe it's because he knows you get to school at the same time every morning. Switch up your routine and see if that helps to avoid him a little better. 
[substeps] If you do have classes together, arrive at the very last minute--just make sure you have a friend save a seat for you (one that's not anywhere near him). Don't try to change your classes altogether.