Try being sensitive to this seeker
Think about your church's worship. Think about the worship of other churches you know. Now think about this seeker:
To whose church would you send a twenty-something Reformed Christian who could get into singing a little Greek on Sunday mornings -- say, a string of Kyrie eleisons?
Where would you send some young believer who fancies set prayers?
Where would you send somebody who thinks the psalms are all that, and is dying to sing them in church? What if he imagines -- get this -- that he could enlist the kids' help to make it happen?
Where would you send someone who wanted to be in a church where they sing things such as the Creed, and don't just say them?
Where would you send somebody who's dissatisfied with the Eucharistic status quo -- who's gotten to thinking (this person is big into reading the Fathers) that the Eucharist is enough of a raison d'être for Sunday worship that not to have it at least every week is deformed, not Reformed?
Where, in short, would you send John Calvin?