i really understand how you feel, because my brother has the same problem not long ago... I know its really hard to pay attention to lectures after so many yrs.
What i recommend is always one sentence, that is "Pay 100% Attention By Putting yourself 100% Participated!"
i.e maybe ask question whenever you dun understand. Dun need to be paiseh (Shy) or whatever becoz everyone in the clz is there to learn.
Whenever the lecturer say something like "do you understand", you could juz nod your head to make sure your always participating~

Hmm... what else... well i can bring it up everything juz likdat, but what i know is juz try to keep yourself participated in the lecture!
