[header] How to touch a guy [title] Hug a guy. [step] If you want to show a guy affection, hugging him is a great way to know you care. Just lean close to him, put your arms around him, and don't linger too long unless you want to show him that you really like him. 
You should have a good reason for hugging the guy, like congratulating him on an accomplishment, or greeting him when he walks into a room, if you know him pretty well already. [substeps] Move your head to the side so you don't awkwardly bring your face too close to his.