What if I have nothing to say?

If you have nothing to say to the person because you take an immediate dislike to them or genuinely feel you have nothing in common then it is better to be honest and tell them this.

You do not owe this person anything and it is important for you to be comfortable in your surroundings rather than feel awkward and upset.

If the other person gets upset at this then its better you realise this at the start than a few weeks down the line. This is not your problem and it is best if you walk away and leave them to it. Do not get emotionally tied to this person because you feel sorry for them as this is not the way for a harmonious relationship.

There are plenty of people out there who thrive on peoples weak points and this is definitely not the basis which you should be or trying to build a relationship on.