This compound subject, therefore, requires a singular verb to agree with it. SUBJECT-VERB RULE #2 Two or more SINGULAR subjects joined by or (or nor) act as a singular compound subject and, therefore, take a singular verb to agree.
For example, You can't help but see how he feels about her; he wears his heart on his sleeve. Shakespeare had it in Othello (1:1): But I will wear my heart upon my sleeve for daws to peck at. People who wear their heart on their sleeve express their emotions freely and openly, for all to see.
Another popular heart design is the sacred heart. This typically is a heart with the crown of thorns Jesus is said to have worn. This represents the pain and suffering that he went through for people. This is a common design used by people who want their tattoo to have a religious meaning.