A crush usually describes attraction or a wish to know someone better. It is not the same as love, compatibility or a commitment. Hearing that someone has a crush on you does not tell you exactly what they want.
There is no single reason for attraction
Someone may enjoy your humour, interests, appearance or the time you spend together. You cannot infer the reason from their gender, and you do not need to change your body or personality to fit a supposed universal ideal.
Check the information
A rumour, glance or compliment can be misunderstood. If you are interested, a direct invitation gives the person room to answer: “Would you like to go on a date?” You do not have to investigate their feelings through mutual friends or social-media activity.
You do not owe a returned feeling
If you are not interested, a brief, kind answer is enough: “I appreciate you telling me, but I do not feel that way.” You are not required to be grateful for unwanted attention or to offer a date as a consolation.
If interest is mutual
Take time to learn how you communicate and what each person wants. A strong initial feeling does not establish trust. Keep your own routines and respect the other person’s pace.
Attraction can change, and either person can decide not to continue. The useful question is not whether a crush proves you are someone’s ideal, but whether your actual interactions are wanted, respectful and enjoyable.