What other things can you do for pecs besides push ups, without using a machine at a gym?
Bored - that sounds like a good start, but I have to admit I'm far from an expert, just talking form personal experience. I am REALLY skinny too. Like heroin chic skinny (well not anymore). To gain weight, I have two suggestions: switch to other kinds of meat instead of white meats (for example, beef, instead of chicken and things like that). Even though both are good for protein, if you're skinny, it means you burn calories really easily, so you have to get more calories (eat however much you want). I'd stop jogging - it'll make you lose weight... I say this, but I probably walk at least a mile a day (AT LEAST... city boy). It's those kinds of things (eating more meat, eating more in general, eating more calories) + working out that has made me gain a good amount of weight + put on muscle. If I just ate white, lean meats like you mentioned, I don't think it'd have the same affect.