Partaking in what manner?
BQ: Once during the Lord's supper, a friend of mine was trying to cut up with me and tell jokes, etc. It would usually be considered harmless playful or flirtatious behavior.
Q: What does the Bible say about how we should act during of the Lord's supper?
A: 1 Cor 11: 26-29
From the verses above, "Therefore whoever eats the bread or drinks the cup of the Lord in an unworthy manner, shall be guilty of the body and the blood of the Lord." In the case above, the person was simply ignorant and had little familiarity with God's word, coming from a church that rarely took communion, but God's word is a matter of eternal life or death. Let's be serious about the cost of our freedom.
"For the entire Law is fulfilled in in this one word: "You shall love your neighbor as yourself."—Gal 5:14