1. Chasing after him
The vast majority of the time, if a guy likes you, he will let you know. It will be obvious. There won’t be any mixed messages or hidden clues to decipher. If he likes you, he will make it known and he will ask you out. Your only job is to show enough interest to let him know he won’t be shot down. This does not need to be obvious and over the top. A sweet smile and sultry eye contact will get the job done.