1.When you talk to them, touch your face and hair softly.
2.Have some physical touch on their arm or wrist casually.
3.With your soft eyes staring at them, when them are speaking.
4.Laugh at their jokes, even it’s a silly joke.
5.Keep an eye on what they need, and always be there for them.
6.Make an eye contact when you come across them among a group of people.
7.If there's an internal joke between you two, you should often include it in the conversation with them.
8.Give him a nick name just you can call him by this name.
9.Find a common nuisance:the bad weather, the terrible traffic or something else annoy you both.
10.Encourage them when they meet some terrible things.
11.Be good to them unconditionally.
12.Keep contact with them everyday and say some ambiguous words.
13.Send some little gifts with no conditions usually.
14.Have a word of praise for them usually.
15.Create any excuse to have a date with them.
16.Show your great joy when you see them, more obvious behaviour is better.
17.Ask them for some help and treat them at sometimes for one night.
18.Volunteer to hold their personal belongs, like the purse.
19.Show your talent and skill in front of them.
20.Be sure to take pictures of both of you when you are together.
21.Give them a card written by you hand, some warm and pink words.
22.Remember what they like or dislike. Order the dinner for them intimately.
23.Participate in their Art Opening / Football Match / Open Mike Night / Event.
24.Talking them about your best friends and some personal things.
25.You would be the last one at the chat history and never leave without saying goodbye.
26.Remember what you said when you last met, and ask them the result of that thing.
27.If they hold your hand, tease their palm softly.
28.Share everything you meet in your daily life, say good night and good morning everyday.
29.Tart yourself up when you’re going to see them.
30.Remember some little thing they once said to you inadvertently.
31.Offer to send them to go to home, and leave .(for men)
32.Create some special experience between you two.
33.Look at the TV programs / movies / Bands / restaurants they mentioned. Tell them what you think.
34.Find any excuse for you two to go to Karaoke. Stick to the duet.
35.Respond to their message right away.
36.Get to know their friends and make friends with them.
37.Cook for them ,if you can cook.
38.Give them your phone number so that you can contact without e-mail/Facebook/Twitter.
39.Remember their important days like birthday.
40.Show reluctance of saying goodbye to them.