What can I do for God to make someone love me?

The shortest way to achieve this is to seek Allah's help and ask Him, for Allah answers prayers, as He Almighty said: "Call upon Me; I will respond to you," and "And when My servants ask you concerning Me, then I am near; I answer the prayer of the supplicant when he calls upon Me." Gifting is a cause for mutual love, as stated in the Hadith: "Exchange gifts, and you will love each other." This applies if the person whose love you desire is permissible for you, such as your husband, your kin, and believing women. However, if it is a person you wish to marry, it is better to make a general supplication that Allah facilitates for you a righteous husband.