you should wear a tank top of any colour depending on the colour of the sweater.
If its cold out, wear a longsleeved shirt. If not, then wear a plain T-shirt.
a shirt or an undershirt
Jeans and a sweatshirt. Anything comftorable and warm.
no, but if your going in public, you should wear a bra,
Yes! Guys think it is hot whenever you wear their sweatshirt or hat <3
Yes
you are weird
Maybe you should wear Capri's with a sweatshirt and maybe dlipflops or sandals. Or even jeans because of if there is wind. I hope I answered your question!
Medium
Usually I wear a sweatshirt that is the team on the SnapBack or something the same color like I have a celtics SnapBack and I don't have a sweatshirt but I wear a long sleeve gray with the sleeves up and some jeans.
If you wear a L size and you want to buy the hollister sweatshirt get the XL size.
socks, sweatpants, sweatshirt, sweater
40 degrees isn't that bad, so you should wear a sweatshirt over any t-shirt and some pants and you will be fine, great if moving around.
small little coat or jacket and jumper, it's not that cold.