No need to deceive

It is not by altering our testimony that we are to hope to win an audience, and it is not by hiding the light of the gospel under a bushel that you or I shall discharge our obligations to our Lord. We must speak up for Christ, and so speak up for Him that men will be moved to ask us the question, "What is thy Beloved more than another beloved, that thou dost so charge us?" ~Spurgeon

To deceive is to lie.

A prayer meeting disguised as a party
Is a lie.
A sermon made to look like a party
Is a lie.
An "Alpha" meeting billed as a party
Is a lie.
Good intentions, if put in anything but the truth,
Is a lie.

The main purpose of a gathering is what it is.

If it isn't a party, don't say it is.
If it is a prayer meeting at the stroke of midnight, say so.
If it is a class, not a party, say so.

Why hide the intention of something?

If it is boring, spice it up.
If it is tedious, help it move along.
If it is complicated, teach it well.

But don't lie about it.