to decide to do something: to do something on purpose / to perform a maneuver, to carry out a tactical action / to decide on an opinion: to believe in an opinion firmly

switch, a device to turn electric current on and off or direct its flow / (rail transport) switch of a railroad, point of a railroad / a change in method or thinking / (computing) network switch

change one's methods or ways of thinking

oneself / first-person pronoun: I, me (often shows the speaker's lower position in a hierarchy than the addressee) / (Kansai) you

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

switching on

to switch on, to turn on

(literally) a switch is flipped / (by extension) someone's mood or thinking changes, as if a switch is flipped in their mind