What's the hardest thing about working out at the gym with friends?

For me its trying not to compete with my friends, I've recently started working out again. I'm a sports med student so I know what to do to increase such and such. Problem is when there's really cute girls staring at you from across the gym, I'm tempted to lift more than I should.

Does anyone else experience or has experienced this?
Do you lift?
Just take selfies at the gym?
I just chat with my friends
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What's the hardest thing about working out at the gym with friends?
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