tense up,
tense cause to be tense and uneasy or nervous or anxious; "he got a phone call from his lawyer that tensed him up"
change state,
turn undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election"
vege out,
vegetate engage in passive relaxation; "After a hard day's work, I vegetate in front of the television"
change undergo a change; become different in essence; losing one's or its original nature; "She changed completely as she grew older"; "The weather changed last night"
relax -
make less severe or strict; "The government relaxed the curfew after most of the rebels were caught"
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"
relax -
become less tense, less formal, or less restrained, and assume a friendlier manner; "our new colleague relaxed when he saw that we were a friendly group"
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"
relax -
become loose or looser or less tight; "The noose loosened"; "the rope relaxed"
minify,
decrease,
lessen decrease in size, extent, or range; "The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fell to under a hundred pounds"; "his voice fell to a whisper"
