Answer:
it depends if it s like a date they both can start from simple things from what they like or dislike in general in their life and slowly lead the conversation about themselves who they are what they do and to make more pleasant and relaxed atmosphere they can refer to funny things that happened in their lives so they feel more comfortable with each other if it not a date then they can talk about simple things that happen that day something like they heard on tv or read or the weather so to encourage talking to each later they can say more about their selves if they choose too