to join or agree with a group or plan
присоединиться или согласиться с группой или планом (prisoyedinit'sya ili soglasit'sya s gruppoy ili planom)
"She decided to fall in with the volunteer crew for the weekend."
"Она решила присоединиться к группе волонтеров на выходных." (Ona reshilas' prisoyedinit'sya k gruppe volontyorov na vykhodnykh.)
take advantage of a good situation while it lasts
to be in a very good position for success
to speak highly of someone
to decide to do something risky or difficult
to relax or slow down after activity
to start a new hobby or leisure activity