If a guy wants you to smell his cologne repeatedly is that considered flirting?

I’m not sure where my relationship with a guy is going as we haven’t kissed even after 3 dates. Sometimes there will be subtle signs for example when he gifted me a book and asked me to smell his palm several times. On our third date he introduced me to a friend. Is he just a slow mover or just not interested in a romantic relationship?
If a guy wants you to smell his cologne repeatedly is that considered flirting?
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