Insert Special Characters like heart and music symbol in chat and facebook

Click the above image to see the text clearly

To obtain an ALT Character:

1. Make certain that the Num Lock key has been pressed to activate the numeric key section of the keyboard.
2. Depress the Alt key.
3. While the Alt key is depressed, type the proper sequence of numbers (on the numeric keypad) of the ALT code from the table above.
4. Release the Alt key, and the character will appear.
5. On a laptop computer, there usually is no numeric keypad. So, instead, depress the Fn (function) key, then the Alt key, then the numerical code sequence. The numbers are on the fronts of certain keyboard keys: M=0, J=1, K=2, L=3, U=4, I=5, O=6, 7=7, 8=8, and 9=9.

Read more about facebook on a real book :
The Story of Facebook
Facebook: The Missing Manual 3e (Missing Manuals)

It is very simple to add the various special characters like these into status updates on orkut or facebook and also to chat messages and stuff.

Just press the [Alt] key on your keyboard and tap out the number sequence, then release the "Alt" key. The special character would come up in the place where the text cursor was.

Shapes and Shading

Character	Name of Character	Alt Code	Character Code	Name Code	Number Code	Shortcut Key	Accent Code
▀	Upper half block	Alt + 223 Alt + 9600	2580		▀
▄	Lower half block	Alt + 220 Alt + 9604	2584		▄
█	Full block	Alt + 219 Alt + 9608	2588		█
▌	Left half block	Alt + 221 Alt + 9612	258C		▌
▐	Right half block	Alt + 222 Alt + 9616	2590		▐
░	Light shade	Alt + 176 Alt + 9617	2591		░
▒	Medium shade	Alt + 177 Alt + 9618	2592		▒
▓	Dark shade	Alt + 178 Alt + 9619	2593		▓
■	Black square	Alt + 254 Alt + 9632	25A0		■
□	White square	Alt + 9633	25A1		□
▪	Black small square	Alt + 9642	25AA		▪
▫	White small square	Alt + 9643	25AB		▫
▬	Black rectangle	Alt + 22 Alt + 9644	25AC		▬
▲	Black up-pointing triangle	Alt + 30 Alt + 9650	25B2		▲
►	Black right-pointing pointer	Alt + 16 Alt + 9658	25BA		►
▼	Black down-pointing triangle	Alt + 31 Alt + 9660	25BC		▼
◄	Black left-pointing pointer	Alt + 17 Alt + 9668	25C4		◄
◊	Lozenge	Alt + 9674	25CA		◊
○	White circle	Alt + 9 Alt + 9675	25CB		○
●	Black circle	Alt + 9679	25CF		●
◘	Inverse bullet	Alt + 8 Alt + 9688	25D8		◘
◙	Inverse white circle	Alt + 10 Alt + 9689	25D9		◙
◦	White bullet	Alt + 9702	25E6		◦

Dingbats

Character	Name of Character	Alt Code	Character Code	Name Code	Number Code	Shortcut Key	Accent Code
☺	White smiling face	Alt + 1 Alt + 9786	263A		☺
☻	Black smiling face	Alt + 2 Alt + 214 Alt + 9787	263B		☻
☼	White sun with rays	Alt + 15 Alt + 9788	263C		☼
♀	Female sign	Alt + 12 Alt + 9792	2640		♀
♂	Male sign	Alt + 11 Alt + 9794	2642		♂
♠	Spade suit	Alt + 6 Alt + 9824	2660	♠	♠
♣	Club suit	Alt + 5 Alt + 9827	2663	♣	♣
♥	Heart suit	Alt + 3 Alt + 9829	2665	♥	♥
♦	Diamond suit	Alt + 4 Alt + 9830	2666	♦	♦
♪	Eighth note	Alt + 13 Alt + 9834	266A		♪
♫	Beamed eighth notes	Alt + 14 Alt + 9835	266B		♫