ભલાઈમાં ભલો મીઠું બોલે તે વહાલો.

bhalāīmāṁ bhalō mīṭhuṁ bōlē tē vahālō.

Literally: Good among the good, the one who speaks sweetly is beloved.
What it means: Gentle and sweet speech is the most effective way to win people's affection.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.