If all of your crush's friends know you like him and he keeps staring at you, chances are excellent that he already knows you like him and he probably likes you back. He's probably trying to figure out the next steps, just like you. Someone needs to make the first move by verbally acknowledging the attraction and seeing if the other feels the same. Do not go through friends to do this. Instead, talk to him personally about his upcoming surgery--details about what's going on, his concerns or anxieties, etc. Tell him you think he's a special guy and offer to help in any way as he recovers from surgery. The surgery also gives you a reason to check up on him afterward in person or via social media/by phone. Better yet, you can go visit him in the hospital. If you're too much of a chicken to do this, mail him a get well card following surgery and express your feelings in writing.