Remember three important things with briefings:
1. Keep them brief or else the other pilot will fall asleep.
2. Identify relevant threats. Is terrain a threat in Katmandu? Of course it is but it's a threat every flight. Unless the high terrain has relocated, don't mention non-specific/obvious threats. Single runway? Okay, well if we are on fire, we're coming back no matter what the weather is.
3. No threats? Don't make up threats for the sake of if, just say "No threats, can you think of any?"
4. (yes I said three initially), how do we mitigate them? Don't just list threats off the top of your head, it's pointless. How do we reduce the likelihood of them affecting our safety? Birds around the airport? Anyone got a firearm on them?
It's good that you're learning about threats AND mitigate/management.