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.
The dos and don'ts of wearing your heart on your sleeve. How to put out (your heart, that is) We don't always practice what we preach, but ladies across America know a thing or two about wearing their hearts on their sleeves. We talked with a few of them and they happily provided us with a few of their dating dos and don'ts.