Whoever said 'flattery will get you everywhere' was right. But there's a catch - sincere compliments can make your date feel good about themselves, and you. Insincere compliments or simply over doing it, on other hand, can stop chemistry in its tracks. Here are 10 irresistible compliments that will quickly turn a first date into a second date, and beyond:

1. Looks: if you like the way your date looks, let them know it. A simple 'you look lovely' (to a woman) or 'you look great' (to a man) will make them feel good about themselves, and help bring out their best side on your date.
2. Accessories: if your date has made an effort to look their best, make a positive comment on something in particular that catches your eye - jewelry or a nice dress (woman), or nice shoes or a nice shirt (man). They'll likely appreciate that you noticed as they likely wore that item to make a good impression on you.
3. Smile: a smile is natures most powerful aphrodisiac - if your date has a great one, be sure to let them know. As a bonus, it'll encourage them to smile more often, which makes any date more fun. P.S. Don't forget to smile back!
4. Common interests: assuming you know something about the person you're meeting, there's likely something about their background and/or profile that you found appealing. If yes, tell them so: ie. 'I love that fact that you've traveled to Asia, it must have been exciting!"
5. Sense of humor: if you find them funny, let them know it. Everyone wants to be appreciated and it'll put them more at ease, and likely lead to more laughs (a very good outcome on a first date).
6. Conversational highlights: during your first date conversation, there will be some things that really stand out for you (travel stories, job related insights, interests, activities, etc.). When that happens, let your date know. Being open about things that connect you will naturally lead you towards more stimulating conversation where you're both engaged.
7. Feeling a connection: if you're feeling a connection during your date, let the person know by saying 'I'm really enjoying myself'... don't hesitate to ask for a second date while on the first date - it's the best time to do so.
8. Follow up: when you next speak with your date, be sure to let them know you enjoyed your time together and some topics, funny stories, or characteristics that you particularly enjoyed.
9. Let it out: as you get to know someone more, and find yourself thinking about them, let them know it. There's little benefit to keeping it all inside: if they feel the same way they'll appreciate it; if they don't, then letting you know that may save you some heartache down the road.
10. The no-compliment compliment: if your date is non-responsive to your compliments, or even irritated by them, then stop complimenting. Always remember, an honest and sincere compliment is good, insincere or over the top compliments are bad.