Start with fruits
One tip I've heard from various is to start with fruits. Use really ripe bananas, mashed with a fork. Or sweet potatoes (baked, with the insides scooped out).

Use a baby food grinder
You can try small bits of real rice, mixed with meats (without seasonings). The meat should be meshed with baby food grinder (you can find these pretty cheap).

Don't feed your baby directly from the jar
This is an interesting tip I've heard from experienced mothers. Feeding your baby directly from the jar is not a good idea. Their saliva can mix with the food and make it taste bad. Put the food in a mug rather than a bowl so that you can feed baby more easily.

Keep away the sweet tooth
Try not to give baby sweet stuff at this stage. Deliberately give them vegetables before fruits to keep away that sweet tooth.

Wait for the first tooth
It is a good idea to wait until your baby gets his / her first tooth before even thinking of starting solids. One baby (I heard) got his first tooth at 5 months and began showing interest in what his father was eating shortly thereafter. At about 6 months, he was reaching for his parents' food.