lend oneself to
To give help or approval to; encourage; assist.
Alice wouldn't lend herself to the plot to hide the teacher's chalk.
let oneself go
To be free in one's actions or talk; relax.
Judge Brown let go at the reunion of his old class and had a good time.
The cowboys worked hard all week, but on Saturday night they went to town and let themselves go.
look oneself
To appear self-possessed and well; look or seem in full possession of your abilities and in good health; to appear all right or normal. Often used in the negative.
Mary had had a long illness, but now she looked quite herself again.
It had been a big night, and Uncle John had been drinking freely, but he looked entirely himself after a night's sleep.
What's wrong with Larry? He doesn't look himself.
lose oneself
To go wrong; miss your way; become unable to find the right direction.
Fred lost himself in the confusion of downtown Boston streets.
To conceal yourself; hide.
The pick-pocket lost himself in the crowd and escaped the police.
To become deeply interested and forget yourself; become absorbed.
Sometimes Harry would lose himself in a book for an afternoon at a time.
make a name for oneself
To become recognized in a field of endeavor; become a celebrity.
Joe has worked so hard at soybean trading that he made quite a name for himself as a trader.
Bill has made a name for himself both as a pianist and as a composer.
make a nuisance of oneself
To constantly bother others.
The screaming kids made a nuisance of themselves around the swimming pool.
make a pig of oneself
To overindulge; eat too much.
Mary said, "This dessert is so delicious that I am going to make a pig of myself and have some more."
make an exhibition of oneself
To behave foolishly or embarrassingly in public.
Stop drinking so much and making an exhibition of yourself.