Definition: to look at something with your mouth open.
Gape
Definition: to look at someone/something quickly and secretively.
Peek
Definition: to try to see someone/something when you can't see them clearly.
Peer
Definitions: phrasal verb, which means to calculate.
Work out
Definitions: noun, the careful watching of somebody who may have done something wrong.
Surveillance
Definition: to look at someone/something for a long time.
Stare
Definition: to look at someone quickly.
Glance
Definitions: adjective, describes someone/something that is weak and easy to attack.
Vulnerable
Definitions: adverb, at the beginning, at first.
Initially
Definitions: noun, a machine, usually on the wall outside a bank, which you can withdraw money from.
Cash Machine
Definition: to watch someone/something carefully to discover more about it.
Observe
Definitions: adjective which means possible. This is only used before nouns, for example, potential problem.
Potential
Definitions: noun, a person of a state or nation. A person who is over the age of 65 is a Senior ________.
Citizen
Definition: to look at someone/something angrily
Glare
Definition: to see someone/something suddenly.
Spot
Definitions: adjective, something against the law. The opposite is legal.
Illegal
Definitions: verb, to check, record or test something.
Monitor
Definitions: verb, to tell somebody about something dangerous.
Warn
Definitions: noun, a label that you attach to an item.
Tag
Definitions: noun, a person who steals from a shop.
Shoplifter
Definitions: verb, to communicate with somebody.
Interact
Definitions: noun, a person who breaks the law. The word for a crime is offence.
Offender