1. Be honest in any praise.
2. Tell them something you like about their appearance.
3. Tell them something you like about their personality.
4. Let them know you like them.
5. Touch them gently on the upper arm.
6. Hug them when appropriate.
7. Kiss them when appropriate.
9. Rub their shoulders.
10. Cuddle up on the couch together while watching TV.

These work for both men and women.

I hope this helps.

Eye contact
Tilting her head
Looking at the guys lips
Smiling alot
Touching him on the arm
Feeling his hair
Winking
Playing with her lips
Complimenting
Things like that
Hope I helped =P