What we've done since day 1 of computer oriented stuff (since week 2 maybe?) is I feed him while in front of the computer. He'll tolerate anything if he has milk going down the gully.... even LM ha ha ha... so if you nurse, this is the downside. Pump & feed is better IMO for this particular reason (you can multitask and educate while feeding)
I would be careful about nipple confusion doing that, etc etc Having a well established BF routine is critical and way more important for an infant at this age.
Like KL and MamaofWill mentioned -- concentrate on talking, singing, infant stimulation cards, lots of input, without focusing on the output. Little ones are truly amazing, the take everything in. I did a lot of narration -- narrating everything I was doing, talking about everything around. Both my husband and I wore our babies, and it provides an excellent opportunity for stimulation, talking, narrating everything during the day.
We started LR, LM and LMs at about 16 weeks, I started with very short, very fast flowing lessons. I introduced LR first, 2 weeks later - LM and another 2 weeks later - LMs, then LR Chinese the last one.
At the beginning he enjoyed fast flash the best. So during LR lessons I just showed the word and picture with no long picture audio ( I customized it), gradually we introduced Picture Audios later on, but for the young infant they are not critical, what counts is seeing written words and related pictures. After a while doing it this way, I would sometimes pause during the picture slide and will talk about it ( instead of PA).
With Little Math, I customized to show only 3 math problems each lesson ( instead of 10 from default setting) and I also changed the numbers and quantities to 5 per session. It worked the best with his concentration level, and later when he was able to concentrate for longer we still kept the sessions quite short, we were ending them with him wanting more. That was a real secret, as now at 14 months he still considers Little Math, Little Reader and Little Musician his favorite activities, a real treat.
Obviously they can not do games themselves when they are that little and just starting. I kept that part of the lesson flowing, doing it myself and cheering loudly with each right answer. By about 6 months I noticed how he was looking at the right word or picture in games even before I pointed it out, he was getting about 7 out of 10 right! But when he hesitated or got distracted I would not make a big deal, expecting him to perform but would just continue on with the lesson enthusiastically.
Also, it is important to do lessons when your baby is fed, happy and alert. So make sure she is nursed, has dry diaper and happy otherwise. It makes a huge difference.
Another thing that I discovered -- it is more important to have shorter lessons/teaching moments regularly, then longer sessions occasionally.
Regularity makes a huge difference. That is why Little Reader, Little Math and Little Musician were ( and are) such a treasure for me - I knew that even if I will not have time to prepare anything else, I have those 3 lessons prepared and waiting for me at any time of day or night. Having done them regualrly, my little boy developed an incredible love for learning. Even his first word was book :-)
Hope some of these suggestions will help.
Let us know how it is going!