modify,
alter,
change make less severe or harsh or extreme; "please modify this letter to make it more polite"; "he modified his views on same-gender marriage"
vulgarise -
cater to popular taste to make popular and present to the general public; bring into general or common use; "They popularized coffee in Washington State"; "Relativity Theory was vulgarized by these authors"
behave,
act,
do behave in a certain manner; "She carried herself well"; "he bore himself with dignity"; "They conducted themselves well during these difficult times"
