[Grammar] watching themselves or looking at themselves

[dsowi12]

Hello. This is from my English task and it left me wondering -

"My friend spend a lot of time looking at themselves in the mirror" or "My friend spend a lot of time watching themselves in the mirror"
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[Rover_KE]

Welcome to the forum.

What are the instructions for this English task? Was there no period at the end?

 

[probus]

Kindly correct the native language information in your profile. Then we'll be better able to help you.