Hey Guys -
So I'm going to be taking photos of my Grandmother's birthday today. 99.99% of my photography I do is either "oh that looks nice" or "I want to take a picture of that"... I really have no experience in picking out candid shots or even determining which lens to use for the majority of them. And of course I'm going to be tasked with pulling together a group photograph in the end (20+ people).
Could someone hold my hand and tell me I'm not going to ruin family memories? 
Setup:
Canon 100D (SL1)
-Canon EF-S 18-55mm f/3.5-5.6 Kit Lens
-Canon EF 40mm f/2.8
-Canon EF 50mm f/1.8
-Canon EF 75-300mm f/4.5-5.6 Zoom
-Canon EF-S 10-22mm f/3.5-4.5




