Allow them to have their time, and whatever you do, be courteous. Don't be angry in response; instead, apologize, listen to what they have to say, and wish them the best. As I previously stated, it is not an easy talk to have since it is always difficult to disappoint someone. But if they are important to you, then you should try your best to keep them happy.
The most effective way of rejecting a guy is by simply ending the relationship. Do not burn any bridges, but rather stay friendly even after the first date. It is very important to remember that relationships take work and commitment, so only move forward with someone who you feel the same way about as you did at the beginning of the date.
If you want to be more direct, you can tell him that you aren't ready for a relationship just yet. You will need to give yourself some time before you can consider dating again, so make sure he understands that this is not a quick decision.
Finally, if all else fails, change your number policy. If you find that there is no good reason for rejecting a guy, then perhaps there is a problem with how you are choosing partners. You might want to reevaluate your criteria for dating and see if there is anything you can do to make it better.
Don't leave anything out.
Allow yourself to be easily let down. Look for a method to decline in a courteous and considerate manner. "I'm sorry, but I'm not romantically interested in you," try saying. "I adore our friendship, but I'm not ready to take it to the next level," you can say. "Thank you, but no thanks," or "I'm impressed, but I'm not interested," are appropriate responses. If you don't want to cause pain, then don't go kissing someone without giving them a chance to tell you no.
If they persist, you can use some simple words to indicate that what they are doing isn't welcome yet again. You can say things like: "That's not what this is about" or "Stop it, please!" Sometimes men need to be told twice before they will back off. If they still come for more then stop them by saying something like: "I'm sorry, but I'm not ready for a relationship right now." Or you can simply walk away.
It's best to avoid getting too close to someone first thing on a new relationship. It's easy to fall into bed with your feelings when you aren't being sensible about them. Kissing someone new means taking chances. If you want to keep your heart safe then stay away from first kisses.
Feel the emotions. Allow yourself to be moved by them. Don't attempt to run away or hide from them. Allow them to arrive. Feel for them. Allow them to leave. You may be concerned that they will never cease, but tell yourself that things will improve. No matter how much we weep, we eventually come to a halt. The same is true of feelings. They arrive, they leave.
Know when to move on. If you've learned anything from these experiences, it's that people are not always who or what they appear to be. Sometimes they change their minds, they may have been confused or in some other way not being clear in their thoughts, when they said "no" it was actually "yes". Learn from your mistakes and don't let them hold you back.
Give yourself time. It may help to remember that everyone has had experiences with breakups. It may help to know that many people through history have experienced death of someone they loved. These are all natural reactions to a situation that most people try to avoid. But if you struggle with depression or anxiety, a breakup could put you in even greater distress than you were before. If this happens to you, take care of yourself by seeking out support from friends and family, taking time off work, relaxing with physical activities that you enjoy, eating well, and getting enough sleep.
Don't compare your partner to others. Everyone has strengths and weaknesses, good times and bad.
You just say, "Sorry, I'm not interested." or "No." If you want to be especially polite, say something like, "I'm flattered, but not interested.", "No, thank you.", or "Thank you for asking, but I'm not interested." They are the ones who are being impolite if they insist on anything more.
If you get invited back for dinner, then go have fun with it! Maybe you two will hit it off and you can go out again sometime.