Although can go at the beginning of a sentence. To walk and to walk on, walk on means keep walking. Abandoned laughing is when you do something in an abandoned way without thinking about yourself at all. Clasping like you have a clasp that you can use to attach a camera to something. You can also clasp someone's hand meaning hold their hand tightly to clasp to clasp your cup of tea in your hand. The word though is very common in spoken English and often it goes at the end where you would put but at the beginning.