to meet someone unexpectedly
встретить кого-то неожиданно (vstretit' kogo-to neozhidanno)
"I bumped into an old friend at the mall."
"Я встретил старого друга в торговом центре." (Ya **vstretil** starogo druga v torgovom tsentre.)
to remain awake later than usual
to have a meal at home or at the hotel instead of going out
to suddenly start burning
to send a quick reply to someone electronically
to explore something deeply and thoroughly
to criticize someone in a way that hurts their feelings