Tips for taking good pics with Nikon 60d?

So I'm taking up photography as a hobby mostly landscape but my friends asked me if I can take pictures of their kids. Now I take pictures with my Iphone but I do have a Nikon 60d camera, what should I focus on and do so the pictures come out well? It'll be outside like in a park, any tips appreciated thank you.

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How much gigabytes of sd card do I need for recording overnight with a Nikon D5100 camera?

Hello, I need to record the activities going around my house. Some weird stuff is going on and I want to record it, maybe I can understand what's going on.

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Settings for lantern pictures?

I will be going to a lantern lighting Festival this weekend. I have a Nikon D40 DSLR and am wondering what the best settings would be to avoid trails, blurriness, grain. I of course do not wish to use flash. Thank you in advance.

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