Glute activation. What does it feel like!?

Hello<div>I’m training for my first half marathon and I’d like to train and activate my glutes. Yes there are loads of YouTube videos - almost too many! But what works best for people to build up the glute muscles ?

Also, what does it actually feel like having an activated glute while running ??? I’ve read it’s like running with a credit card kept in between your butt cheeks but I can barely walk like that let alone run. Should they be “firing” all the time or only when one leg goes forward? Any help greatly appreciated. </div><div>CD</div><div>
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