As this is a forum for (mostly) frequent flyers I've waited in vain for the smart advice to a new flyer. Some would call it black humour.

Here goes:
- after takeoff fully test the reclining mechanism on your seat by pushing sharply backwards. If you get a yelp of pain from the guy behind, it works properly
- the approved method to get the attention of a flight attendant is to snap your fingers and holler ' Hey, Miss. Yes, you!'
- take your time stowing bags by standing right in the aisle and carefully fold all outdoor clothing. Protests from passengers you delay are regarded as humorous joshing
- wear a large backpack and occasionally swivel round looking for your seat number. Those already seated in aisle seats regard the smack in the head that ensues as just part of the boarding ritual

Seriously - relax and enjoy 😀