Hi. First, welcome to MDC
Personally, I wouldn't worry to much *at* six months. Assuming you are still nursing, solids are only experiemental for the first year. The optimal diet at 12 months has a minimum of 75% of calories coming from breastmilk (or so it was believed when I researched it).
Because eating food is about the experience, I would just try to make it fun! You can let your DS hold utensils if he is interested. Give him a sippy cup. We, personally, gave soft chunks of food. My kids also liked "chewing" on harder/larger foods (like a whole carrot--- they had no teeth so couldn't get a chunk, but would happily gum it).
Many children don't have a real interest in food until much closer to their 1st birthday (both of mine were over 95% bfed at one year). Give him a little bit more time :)
My DD2 did this also when we tried her first foods at 6 months. I decided to just give her some food and silverware to play with and figured she would eventually eat. Around 8 months she started eating real food (as opposed to baby food) on her own. She never would let me feed her with a spoon but she was proficient feeding herself with both a spoon and fork by 11 months. Just take it easy and he'll eat when he's ready :)
Maegen, adventurous wife to DH, loving mom to my beautiful DD's and expecting another babe in March 2012!