It truely does depend on the venue that the speech is being given in. The situation matters quite a bit. Though you can really never go wrong with:
"Good morning"
"Good afternoon"
or "Good Evening"
"Good evening everyone, respected teachers, parents, and dear students. It gives me immense pleasure to welcome you all to our school's annual function, a celebration of talent, hard work, and camaraderie. Let's cherish this evening together as we witness the incredible performances and achievements of our school community." "A warm welcome to all our esteemed guests, faculty members, proud parents, and my dear friends gathered here tonight. The annual function is a platform where we showcase the diverse talents and skills of our students. Let us come together to applaud their dedication and creativity, and celebrate the spirit of unity and excellence that defines our school." "Greetings to one and all present here, as we gather to celebrate our school's annual function - a culmination of creativity, perseverance, and teamwork. It is a delight to witness our students shine bright on this stage, mesmerizing us with their talent and passion. Let us appreciate their hard work and commitment as we embark on this memorable evening together."
Head nod
It is a common noun.
The common handshake is enough.
hi how are you? happy Good Friday
a hard slap on the thigh
the appropriate thing is a comma
The starting word of a speech is the introduction. Many people begin their speech with a greeting to the audience and distinguished guests.
The word hey is an interjection. It is an informal greeting.
The word appropriate has two parts of speech. It can be an adjective and a verb.
विवाद that means hello hope that helps x
The appropriate greeting for Easter is 'Happy Easter'. If one were to say Happy Birthday Jesus, at Christmas, they could say Christ is Risen at Easter.