The key answer of exercise 1

b)

1. -
2. The Shoulder Surf, The Fake Police Officer and Escalator Jam can be done by one person. The other two need at least two people working together.

c)

1. pretend to be, pose as
2. deceive, fool
3. distract, divert someone's attention (from sth)
4. snatch, grab
5. be taken in (by), fall for
6. switch (sth with sth), swap (sth for sth else)

NB Although these verbs and phrases are used as synonyms in this context, it's worth pointing out to Ss other contexts where some of them can be used:

• pretend to be = behave as if something is true → pretend to be asleep, pretend you didn't hear
• switch = change from one thing to another → He's switched jobs.; She can switch from Italian to English easily.
• grab = take hold of something suddenly → She grabbed my arm when she heard the scream.
• swap = exchange → Let's swap phone numbers.