weigh up

US /weɪ ʌp/
UK /weɪ ʌp/
"weigh up" picture
1.

to consider the good and bad aspects of something in order to reach a decision

:
You need to weigh up the pros and cons before making a choice.
She's still weighing up her options for university.
2.

to form an opinion about someone or something after careful thought

:
It took him a while to weigh up his new colleagues.
She quickly weighed up the situation and decided to act.