BitcoinBuddha on Nostr: how can you tell who sent you sat's...I receive them periodically in my wallet, but ...

how can you tell who sent you sat's...I receive them periodically in my wallet, but there are no traces are some of them anonymous.... how are you supposed to know to say thanks or whatever... I got 1 zap a few days ago that is in my notifications. When I send sat's there is no you just zapped whoever gif fanfare...I get a browser confirmation...it works, it's just boring... and if you send me sat's I won't know who you are. any ideas out there??