So, I like this guy who has been one of my best guy friends for like 4 years. How do I get his attention? Help?

i switched schools this year, so I dont see him as much. I dont know how to start a conversation with him, so I need help thinking of something creative to talk to him about.So, I like this guy who has been one of my best guy friends for like 4 years. How do I get his attention? Help?
if you really need a topic, first you need to figure how to talk cuz guys are very simple to talk to....sports, other girls, food, cars, family, friends......if you have been his friend for 4 yrs then obviously you have talk to him, do the same again! are you really that absent minded you need to ask such a stupid question???