How do you know if someone you like likes you even though you never talk?

You could send someone to ask your crush if he/she likes you. But if you never talk then, try looking at your crush for awhile then see how they glare at you. Watch their actions when he/she is around you. If your crush glares at you weird, that is a sign that he/she likes you, if he acts cool or weird around you, then he likes you. If your crush askes you to call, then he/she likes you. Hope this was helpful. : )