It's been my first time playing in an OTB tournament recently, and I heard that when resigning, you stop your clock and offer and handshake instead of verbally stating your resignation so as to not disturb other players playing. However, during one of the matches I was playing a child and when he offered a handshake (he was losing), I accepted it thinking he resigned but he said it was a draw offer, and I only managed to secure the win after a tedious talk with the arbiter. How will both parties know specifically if a draw or resignation is offered? I would like to not face this problem again in the future.
In OTB chess, it is not a problem to verbally and clearly state, "I resign", as you extend your hand for the handshake. This is my preferred method of resigning because there is no confusion. Alternatively if you really don't want to make any noise, tipping over your king and then extending your hand is equally (if not more) clear.
In general, I recommend verbally asking for clarification ("Are you resigning?") if your opponent does not verbally say "I resign" or they do not tip over their king. Your story matches others that I have heard where there was confusion between a draw offer and a resignation.
Making noise is generally frowned upon. However, resignations and verbal draw offers are more or less an exception (think of it as being part of the game of chess itself); I have never been disturbed when a player says, "I resign" or when a person next to me asks his opponent, "How about a draw?" But what players should not do is immediately start talking or analyzing - that's a guaranteed way to annoy people.
It's been my first time playing in an OTB tournament recently, and I heard that when resigning, you stop your clock and offer and handshake instead of verbally stating your resignation so as to not disturb other players playing. However, during one of the matches I was playing a child and when he offered a handshake (he was losing), I accepted it thinking he resigned but he said it was a draw offer, and I only managed to secure the win after a tedious talk with the arbiter. How will both parties know specifically if a draw or resignation is offered? I would like to not face this problem again in the future.