straight answer

The word "straight" here is a metaphor for either 1) "honest" or 2) "correct." (See: rc://en/ta/man/jit/figs-metaphor)

gives a kiss on the lips

A kiss was a sign of respect and devotion in that culture. Alternate translation: "shows true friendship" (See: rc://en/ta/man/jit/figs-idiom)