Remain
121keep one's cool — remain calm, keep one s temper …
122keep one's head — remain calm, not get excited …
123keep silent — remain quiet; not tell, not reveal (information, secret, etc.) …
124mind one's manners — remain polite, be sure to be courteous …
125play it cool — remain composed, not become excited …
126poop out — remain inactive, fail due to exhaustion or fear; get tired (Slang) …
127sit on one's hands — remain idle, do nothing …
128stay alive — remain alive, be among the living, survive …