in the wallet qt go to help tab then debug console, it opens seperate window click on debug console tab. 
type:
addnode 109.210.37.160:7139 add
press enter

or go to your twecoin.conf found under (windows 7) start menu > search > %appdata%  > folder of twecoin 
add noes to the conf file as:
addonde=109.210.37.160:7139