Probably... you mean the 'Square Face Icon Generator'
in the top left corner of the picture there should be a share button with a tumblr icon, hit that. you need to be signed in to tumblr first though.
To get the follow me icon get the like button code through your Twitter account. Then copy paste this code into your tumblr blog. Go to Tumblr Dashboard >> Your Blog >> Customize >> Edit HTML Here paste the Twitter like button and place it properly.
They usually make them on paint or photoshop.
There are no profile pictures on tumblr, only icons. Some themes allow you to upload an image on the sidebar though.
Move the mouse pointer to rest on the item of choice
DP means Display Picture, which is an icon located on the top right hand corner of your tumblr. You can change the Icon to a picture of your choice by going to: Customize >> Description >> Browse From here, all you have to do it search for the picture you would like to use for your tumblr blog, and click OK. Hope this has helped, Enjoy Blogging! :)
point
Click drag means moving your pointer over an icon and then clicking on it. Then, without unclicking, moving the mouse to where you want to drop the icon. And then unclick. Double click means moving you pointer over an icon and quickly push the left mouse click button two times. Right click just means clicking the right mouse click button. This might be referring to right clicking on an icon. In which case you should hover the mouse pointer over the icon and then push the right mouse button.
Move the mouse over your icon at your page,then when you see the little pencil thing pop up around the icon you can upload it.
You can use photoshop or paint. If you look around maybe search under the tag icon there are sme people who are willing to make them for people for a promotion.
Place your mouse pointer over the icon with out clicking for a few seconds. A small yellow box will appear very close by to your mouse containing a brief description of the function of that icon. Most icons in Microsoft Word have this ability.